Fix the URL format for GitWeb raw file URL masks.
Review Request #6775 — Created Jan. 14, 2015 and submitted
GitWeb-backed Git repositories had to be configured with a particular
URL, but the format we provided for the URL was incorrect. Thehb=
parameter was given, but it should have beenh=
.This updates the docs and the example to use the correct parameter.
Built the docs and saw the correct URLs.