Fix contributor info

Author: alexeyr

docs/contributor-info/pull-requests.md

@@ -37,8 +37,8 @@ When making doc changes, we want the change to work on both the gitbook and the
 
 ### Links to other docs:
 
-- When making references to doc files, use a relative URL path like:
+- When making references to doc files, use a full URL to <https://www.shakacode.com/react-on-rails/docs>, for example:
   `[Installation Overview](https://www.shakacode.com/react-on-rails/docs/additional-details/manual-installation-overview/)`
 
-- When making references to source code files, use a full url path like:
+- When making references to source code files, use a full GitHub URL, for example:
   `[spec/dummy/config/initializers/react_on_rails.rb](https://github.com/shakacode/react_on_rails/tree/master/spec/dummy/config/initializers/react_on_rails.rb)`