Auto merge of #5578 - cardoe:extend-ci, r=alexcrichton
authorbors <bors@rust-lang.org>
Sun, 27 May 2018 22:52:20 +0000 (22:52 +0000)
committerbors <bors@rust-lang.org>
Sun, 27 May 2018 22:52:20 +0000 (22:52 +0000)
commitc3b09c9680fce8ab70a49c8531fd8f84c2ccdff2
treedd4d2f50875689a395e0471b9b8313e9b3b51d95
parent1bdedc73eeb26948dc1aa8c0a600fb8fb525b13b
parentf84ec4fc5523472806669c9ae2afa763ee3837ce
Auto merge of #5578 - cardoe:extend-ci, r=alexcrichton

add GitLab CI to the CI docs

Cargo supports GitLab CI natively for CI badges so include a basic
example of how to use it in the CI section of the documentation.