Described organization and user exclusion

Author: timoxd7

README.md

@@ -68,7 +68,10 @@ gitlab:
     # (default: https://gitlab.com/)
     url: https://gitlab.mydomain.com
     # (optional) Exclude this list of repos
+    # or whole organizations/users
     exclude:
+      - my-excluded-org
+      - my-excluded-user
       - my-namespace/excluded-repository-name
 ```