Merge pull request #215 from SchadLucas/master

Fix typo

Author: axilleas

install/centos/README.md

@@ -219,7 +219,7 @@ You might have to run `source ~/.bash_profile` for the `$PATH` to take effect.
 
 ## 2. Ruby
 
-The use of ruby version managers such as [RVM](http://rvm.io/), [rbenv](https://github.com/sstephenson/rbenv) or [chruby](https://github.com/postmodern/chruby) with GitLab in production frequently leads to hard to diagnose problems. Version managers are not supported and we stronly advise everyone to follow the instructions below to use a system ruby.
+The use of ruby version managers such as [RVM](http://rvm.io/), [rbenv](https://github.com/sstephenson/rbenv) or [chruby](https://github.com/postmodern/chruby) with GitLab in production frequently leads to hard to diagnose problems. Version managers are not supported and we strongly advise everyone to follow the instructions below to use a system ruby.
 
 Remove the old Ruby 1.8 package if present. Gitlab 6.7 only supports the Ruby 2.0.x release series: