Auto merge of #2815 - alexcrichton:lets-add-some-docs, r=brson
authorbors <bors@rust-lang.org>
Wed, 6 Jul 2016 18:16:00 +0000 (11:16 -0700)
committerGitHub <noreply@github.com>
Wed, 6 Jul 2016 18:16:00 +0000 (11:16 -0700)
commit6c27aa6985c18d644cbf6a13d54c8ae36aeaae12
treec1b347d6de2ca0111b46ebdb101d381b19c2c281
parentaf5dd4f53359ccc1bbb6bb7708183fce3d11ea4e
parent46f84667900345e5acc8d7076885115c4f25fee9
Auto merge of #2815 - alexcrichton:lets-add-some-docs, r=brson

Document the [replace] section

Thought I did this before, but apparently forgot!