Fix broken links in documentation

doc/README.md

@@ -10,7 +10,7 @@
 - [SSH](ssh/README.md) Setup your ssh keys and deploy keys for secure access to your projects.
 - [Web hooks](web_hooks/web_hooks.md) Let GitLab notify you when new code has been pushed to your project.
 - [Workflow](workflow/README.md) Using GitLab functionality and importing projects from GitHub and SVN.
-- [OAuth2 provider](integration/oauth_provider.md) to allow you to login to other applications from GitLab.
+- [GitLab as OAuth2 authentication service provider](integration/oauth_provider.md). It allows you to login to other applications from GitLab.
 
 ## Administrator documentation
 

doc/integration/github.md

@@ -35,7 +35,7 @@ To enable the GitHub OmniAuth provider you must register your application with G
       sudo -u git -H editor config/gitlab.yml
     ```
 
-1.  See [Initial OmniAuth Configuration](README.md#initial-omniauth-configuration) for inital settings.
+1.  See [Initial OmniAuth Configuration](omniauth.md#initial-omniauth-configuration) for inital settings.
 
 1.  Add the provider configuration:
 

doc/integration/omniauth.md

@@ -70,7 +70,7 @@ Now we can choose one or more of the Supported Providers below to continue confi
 ## Supported Providers
 
 - [GitHub](github.md)
-- [GitLab](gitlab.md)
+- [GitLab.com](gitlab.md)
 - [Google](google.md)
 - [Shibboleth](shibboleth.md)
 - [Twitter](twitter.md)