Auto merge of #4554 - lukaslueg:contributing, r=alexcrichton
authorbors <bors@rust-lang.org>
Sat, 30 Sep 2017 09:40:21 +0000 (09:40 +0000)
committerbors <bors@rust-lang.org>
Sat, 30 Sep 2017 09:40:21 +0000 (09:40 +0000)
commita888e111e4938b8c305190fd0eaebef5f4c1718f
treee00f7477572765d4229ce8075c35299de907557d
parent6e69e09bf9209dd3bacc4b441c61f72ad06e8bf1
parent47faa0f17101efa417feddd99d65315c42cdd0f1
Auto merge of #4554 - lukaslueg:contributing, r=alexcrichton

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Expand `contributing.md`, including inspirations from Rust's and some other projects' guides.