Add a section on where to post what citing GitLab

documentation.rst

@@ -10,6 +10,14 @@ Edit or add.  That's the primary instruction.  You can edit directly on `gitlab.
 .. note::
     This documentation page is a good one to copy or refer to as an example for ReStructuredText formatting.  And of course anyone can come and clean up formatting later.
 
+
+Where to post what
+------------------
+
+We like `Gitlab's approach <https://about.gitlab.com/handbook/git-page-update/#where-should-content-go>`: If you're not sure where to put something in documentation, or if it even is documentation, `write a blog post <https://agaric.com/node/add/blog>`.  Or even, in the Agaric context, just throw it in a `raw note <https://gitlab.com/agaric/resources/raw-notes>`.
+
+Somewhere is better than nowhere.
+
 Principles
 ----------