contribution guidelines

README.markdown

@@ -216,6 +216,16 @@ Records inserted after the last insert id is retrieved and before the triggers
 are created are currently lost. The table should be briefly locked while id is
 read and triggers are applied.
 
+## Contributing
+
+We'll check out your contribution if you:
+
+- Provide a comprehensive suite of tests for your fork.
+- Have a clear and documented rationale for your changes.
+- Package these up in a pull request.
+
+We'll do our best to help you out with any contribution issues you may have.
+
 ## Footnotes
 
 [0]: http://www.facebook.com/note.php?note\_id=430801045932 "Facebook"