Auto merge of #3669 - Susurrus:master, r=alexcrichton
authorbors <bors@rust-lang.org>
Wed, 8 Feb 2017 19:47:28 +0000 (19:47 +0000)
committerbors <bors@rust-lang.org>
Wed, 8 Feb 2017 19:47:28 +0000 (19:47 +0000)
Correct capitalization of GitLab

Never realized this is how they spelled it when I added these docs. Equivalent changes are pending for `crates.io` in rust-lang/crates.io#547


Trivial merge