Fixed #3489 -- document that we don't have wheels for pypy (#3496)

* Fixed #3489 -- document that we don't have wheels for pypy

* homebrew is a word
diff --git a/docs/faq.rst b/docs/faq.rst
index 4a9fd5c..9706faa 100644
--- a/docs/faq.rst
+++ b/docs/faq.rst
@@ -23,6 +23,10 @@
 our wheel files. Upgrade your copy of pip with ``pip install -U pip`` and then
 try install ``cryptography`` again.
 
+If you are using PyPy, we do not currently ship ``cryptography`` wheels for
+PyPy. You will need to install your own copy of OpenSSL -- we recommend using
+Homebrew.
+
 Starting ``cryptography`` using ``mod_wsgi`` produces an ``InternalError`` during a call in ``_register_osrandom_engine``
 -------------------------------------------------------------------------------------------------------------------------
 
diff --git a/docs/spelling_wordlist.txt b/docs/spelling_wordlist.txt
index 450e758..b3303a4 100644
--- a/docs/spelling_wordlist.txt
+++ b/docs/spelling_wordlist.txt
@@ -39,6 +39,7 @@
 FIPS
 Google
 hazmat
+Homebrew
 hostname
 indistinguishability
 initialisms