Update contributing.md

Author: pydanny

contributing.md

@@ -5,4 +5,7 @@ Before You Submit an Issue
 * 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 and credit purposes, **each request for correction needs to be in it's own issue. If an issue contains 2 or more issues, we'll close it with a request for breaking up into more atomic issues.**
+* 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 [courses@twoscoopspress.com](mailto:courses@twoscoopspress.com)
+* Dirija sus preguntas sobre precios y disponibilidad a [courses@twoscoopspress.com](mailto:courses@twoscoopspress.com)
+