Update contributing.md

Author: pydanny

contributing.md

@@ -4,8 +4,7 @@ Before You Submit an Issue
 * Be nice. :-)
 * Be honest.
 * Check the other issues in [open](https://github.com/twoscoops/Creating-and-Distributing-Python-Packages?state=open) and [closed](https://github.com/twoscoops/Creating-and-Distributing-Python-Packages/issues?state=closed) to see if your issue already exists.
-* Please, please, please identify each issue by chapter and section number. 
-* For tracking purposes, **each request for correction needs to be in it's own issue. If an issue contains 2 or more issues, we'll break it up into more atomic issues.**
+* Please, please, please identify each issue by **section** and **lesson** number. 
+* For tracking purposes, each request for correction needs to be in it's own issue. If an issue contains 2 or more issues, we'll break it up into more atomic issues.
 * Please direct questions about pricing or availability to [[email protected]](mailto:[email protected])
 * Dirija sus preguntas sobre precios y disponibilidad a [[email protected]](mailto:[email protected])
-