Fix nits in Win Cross Compile doc.

Change-Id: Ib2f0243765fea6d4a38a47c04e89aab172cfec5e
Reviewed-on: https://chromium-review.googlesource.com/734139
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#510943}
1 file changed