Auto merge of #3589 - mathstuf:repository-docs-clarify, r=alexcrichton
authorbors <bors@rust-lang.org>
Tue, 24 Jan 2017 18:20:29 +0000 (18:20 +0000)
committerbors <bors@rust-lang.org>
Tue, 24 Jan 2017 18:20:29 +0000 (18:20 +0000)
doc/manifest: clarify the meaning of the URLs


Trivial merge