[1.7.x] Fixed typo in docs/ref/contrib/admin/index.txt

Backport of 8b106cfaa07dc04ad27a1a90c1eb03af80111695 from master
This commit is contained in:
latyas(懒) 2015-05-20 19:00:19 +08:00 committed by Tim Graham
parent 3908c3cb71
commit 198ad25a03