Change links to 5-3 branch to point to master instead

doc/install/installation.md

@@ -364,9 +364,9 @@ These steps are fairly general and you will need to figure out the exact details
 * Stop GitLab
 		`sudo service gitlab stop`
 
-* Add provider specific configuration options to your `config/gitlab.yml` (you can use the [auth providers section of the example config](https://github.com/gitlabhq/gitlabhq/blob/5-3-stable/config/gitlab.yml.example#L53) as a reference)
+* Add provider specific configuration options to your `config/gitlab.yml` (you can use the [auth providers section of the example config](https://github.com/gitlabhq/gitlabhq/blob/master/config/gitlab.yml.example) as a reference)
 
-* Add the gem to your [Gemfile](https://github.com/gitlabhq/gitlabhq/blob/5-3-stable/Gemfile#L18)
+* Add the gem to your [Gemfile](https://github.com/gitlabhq/gitlabhq/blob/master/Gemfile)
                 `gem "omniauth-your-auth-provider"` 
 * If you're using MySQL, install the new Omniauth provider gem by running the following command:
 		`sudo -u git -H bundle install --without development test postgres --path vendor/bundle --no-deployment`