Document URL: https://docs.openshift.com/enterprise/3.0/admin_guide/manage_authorization_policy.html

Describe the issue: Information on creating custom roles/policies or taking an existing role and editing it. 

Suggestions for improvement:
 
=List out all resourcegroups and what resources they include. 
=Description of what each verb does
=Descriptions/Index of all the different resources. 
=syntax of resources 
      resourcegroup:XXX
      foo/bar

=attributeRestrictions what is this and what is its use


Additional information: 

https://github.com/openshift/origin/blob/master/pkg/authorization/api/types.go