[css-writing-modes] Move 'text-combine-upright: digits' tests to Level 4
diff --git a/css/css-writing-modes/full-width-003.html b/css/css-writing-modes/full-width-003.html
index a708656..da0d470 100644
--- a/css/css-writing-modes/full-width-003.html
+++ b/css/css-writing-modes/full-width-003.html
@@ -5,7 +5,7 @@
 <title>CSS Writing Modes: 'text-combine-upright: digits 2' applied on 2 full-width characters</title>
 <link rel="author" title="Masataka Yakura" href="http://google.com/+MasatakaYakura">
 <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-fullwidth" title="9.1.3.1. Full-width Characters">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-fullwidth" title="9.1.3.1. Full-width Characters">
 <link rel="help" href="https://www.w3.org/TR/css-text-3/#text-transform-property" title="2.1. Case Transforms: the 'text-transform' property">
 <link rel="mismatch" href="reference/full-width-002-notcu-notref.html">
 <link rel="mismatch" href="reference/full-width-002-horizontal-notref.html">
diff --git a/css/css-writing-modes/text-combine-upright-parsing-digits-001.html b/css/css-writing-modes/text-combine-upright-parsing-digits-001.html
index bcb6c14..4f083c8 100644
--- a/css/css-writing-modes/text-combine-upright-parsing-digits-001.html
+++ b/css/css-writing-modes/text-combine-upright-parsing-digits-001.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: parsing text-combine-upright for digits</title>
 <link rel="author" title="Masataka Yakura" href="http://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <meta name="assert" content="text-combine-upright supports `none`, `all`, `digits`, and `digits` followed by a digit in the range from 2 to 4.">
 <meta name="flags" content="dom">
 <script src="/resources/testharness.js"></script>
diff --git a/css/css-writing-modes/text-combine-upright-parsing-digits-002.html b/css/css-writing-modes/text-combine-upright-parsing-digits-002.html
index 7a375d6..327ebdd 100644
--- a/css/css-writing-modes/text-combine-upright-parsing-digits-002.html
+++ b/css/css-writing-modes/text-combine-upright-parsing-digits-002.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: parsing text-combine-upright with digits plus calc() computing to valid digits</title>
 <link rel="author" title="Masataka Yakura" href="http://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="help" href="http://www.w3.org/TR/css-values-3/#calc-notation">
 <meta name="assert" content="User Agents support text-combine-upright with values `digits calc(...)` if the expression inside `calc()` computes to a valid integer, which is either 2, 3, or 4.">
 <meta name="flags" content="dom">
diff --git a/css/css-writing-modes/text-combine-upright-parsing-invalid-001.html b/css/css-writing-modes/text-combine-upright-parsing-invalid-001.html
index aabe7a7..beb5410 100644
--- a/css/css-writing-modes/text-combine-upright-parsing-invalid-001.html
+++ b/css/css-writing-modes/text-combine-upright-parsing-invalid-001.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: parsing text-combine-upright with invalid values</title>
 <link rel="author" title="Masataka Yakura" href="http://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <meta name="assert" content="text-combine-upright doesn't support undefined keywords and out-of-range integer, and numbers.">
 <meta name="flags" content="dom invalid">
 <script src="/resources/testharness.js"></script>
diff --git a/css/css-writing-modes/text-combine-upright-parsing-invalid-002.html b/css/css-writing-modes/text-combine-upright-parsing-invalid-002.html
index ed5ce4e..08a0978 100644
--- a/css/css-writing-modes/text-combine-upright-parsing-invalid-002.html
+++ b/css/css-writing-modes/text-combine-upright-parsing-invalid-002.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: parsing text-combine-upright with digits plus calc() computing to invalid digits</title>
 <link rel="author" title="Masataka Yakura" href="http://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="help" href="http://www.w3.org/TR/css-values-3/#calc-notation">
 <meta name="assert" content="User Agents ignore text-combine-upright with values `digits calc(...)` if the expression inside `calc()` computes to either numbers or out-of-range integers.">
 <meta name="flags" content="dom invalid">
diff --git a/css/css-writing-modes/text-combine-upright-value-digits2-001.html b/css/css-writing-modes/text-combine-upright-value-digits2-001.html
index 10c4f42..a765d2d 100644
--- a/css/css-writing-modes/text-combine-upright-value-digits2-001.html
+++ b/css/css-writing-modes/text-combine-upright-value-digits2-001.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: text-combine-upright: digits 2</title>
 <link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="match" href="reference/text-combine-upright-value-single-character.html">
 <meta name="assert" content="the 'digits' values in text-combine-upright rotates the composition even if there is only one character inside tate-chu-yoko.">
 <meta name="flags" content="">
diff --git a/css/css-writing-modes/text-combine-upright-value-digits2-002.html b/css/css-writing-modes/text-combine-upright-value-digits2-002.html
index ab8d216..5a9784e 100644
--- a/css/css-writing-modes/text-combine-upright-value-digits2-002.html
+++ b/css/css-writing-modes/text-combine-upright-value-digits2-002.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: text-combine-upright: digits 2 + two digits</title>
 <link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="match" href="reference/vertical-ahem-1x1-ref.html">
 <link rel="mismatch" href="reference/horizontal-ahem-1x1-notref.html">
 <meta name="assert" content="'text-combine-upright: digits 2' combines two ASCII digits horizontally.">
diff --git a/css/css-writing-modes/text-combine-upright-value-digits2-003.html b/css/css-writing-modes/text-combine-upright-value-digits2-003.html
index 2a56d3e..dd73b55 100644
--- a/css/css-writing-modes/text-combine-upright-value-digits2-003.html
+++ b/css/css-writing-modes/text-combine-upright-value-digits2-003.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: text-combine-upright: digits 2 + three digits</title>
 <link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="match" href="reference/vertical-ahem-1x3-ref.html">
 <link rel="mismatch" href="reference/horizontal-ahem-1x3-notref.html">
 <meta name="assert" content="'text-combine-upright: digits 2' does not combine digits that are greater than two.">
diff --git a/css/css-writing-modes/text-combine-upright-value-digits3-001.html b/css/css-writing-modes/text-combine-upright-value-digits3-001.html
index bec7de9..227ec7e 100644
--- a/css/css-writing-modes/text-combine-upright-value-digits3-001.html
+++ b/css/css-writing-modes/text-combine-upright-value-digits3-001.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: text-combine-upright: digits 3 + two digits</title>
 <link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="match" href="reference/vertical-ahem-1x1-ref.html">
 <link rel="mismatch" href="reference/horizontal-ahem-1x1-notref.html">
 <meta name="assert" content="'text-combine-upright: digits 3' combines two ASCII digits horizontally.">
diff --git a/css/css-writing-modes/text-combine-upright-value-digits3-002.html b/css/css-writing-modes/text-combine-upright-value-digits3-002.html
index 18da1a2..d1a352d 100644
--- a/css/css-writing-modes/text-combine-upright-value-digits3-002.html
+++ b/css/css-writing-modes/text-combine-upright-value-digits3-002.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: text-combine-upright: digits 3 + three digits</title>
 <link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="match" href="reference/vertical-ahem-1x1-ref.html">
 <link rel="mismatch" href="reference/horizontal-ahem-1x1-notref.html">
 <meta name="assert" content="'text-combine-upright: digits 3' combines three ASCII digits horizontally.">
diff --git a/css/css-writing-modes/text-combine-upright-value-digits3-003.html b/css/css-writing-modes/text-combine-upright-value-digits3-003.html
index 11a6932..f8f8371 100644
--- a/css/css-writing-modes/text-combine-upright-value-digits3-003.html
+++ b/css/css-writing-modes/text-combine-upright-value-digits3-003.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: text-combine-upright: digits 3 + four digits</title>
 <link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="match" href="reference/vertical-ahem-1x4-ref.html">
 <link rel="mismatch" href="reference/horizontal-ahem-1x4-notref.html">
 <meta name="assert" content="'text-combine-upright: digits 3' does not combine digits that are greater than three.">
diff --git a/css/css-writing-modes/text-combine-upright-value-digits4-001.html b/css/css-writing-modes/text-combine-upright-value-digits4-001.html
index 5a9f0e4..21a2a0d 100644
--- a/css/css-writing-modes/text-combine-upright-value-digits4-001.html
+++ b/css/css-writing-modes/text-combine-upright-value-digits4-001.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: text-combine-upright: digits 4 + three digits</title>
 <link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="match" href="reference/vertical-ahem-1x1-ref.html">
 <link rel="mismatch" href="reference/horizontal-ahem-1x1-notref.html">
 <meta name="assert" content="'text-combine-upright: digits 4' combines three ASCII digits horizontally.">
diff --git a/css/css-writing-modes/text-combine-upright-value-digits4-002.html b/css/css-writing-modes/text-combine-upright-value-digits4-002.html
index d58e555..1481345 100644
--- a/css/css-writing-modes/text-combine-upright-value-digits4-002.html
+++ b/css/css-writing-modes/text-combine-upright-value-digits4-002.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: text-combine-upright: digits 4 + four digits</title>
 <link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="match" href="reference/vertical-ahem-1x1-ref.html">
 <link rel="mismatch" href="reference/horizontal-ahem-1x1-notref.html">
 <meta name="assert" content="'text-combine-upright: digits 4' combines four ASCII digits horizontally.">
diff --git a/css/css-writing-modes/text-combine-upright-value-digits4-003.html b/css/css-writing-modes/text-combine-upright-value-digits4-003.html
index 4b30058..8dd3cd5 100644
--- a/css/css-writing-modes/text-combine-upright-value-digits4-003.html
+++ b/css/css-writing-modes/text-combine-upright-value-digits4-003.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <title>CSS Writing Modes: text-combine-upright: digits 4 + five digits</title>
 <link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
-<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#text-combine-upright">
+<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
 <link rel="match" href="reference/vertical-ahem-1x5-ref.html">
 <link rel="mismatch" href="reference/horizontal-ahem-1x5-notref.html">
 <meta name="assert" content="'text-combine-upright: digits 4' does not combine digits that are greater than four.">