Minor edits

Author: dabeaz

Notes/09_Packages/TheEnd.md

@@ -4,9 +4,7 @@ You've made it to the end of the course.  Thanks for your time and your attentio
 May your future Python hacking be fun and productive!
 
 I'm always happy to get feedback.  You can find me at [https://dabeaz.com](https://dabeaz.com)
-or on Twitter at [@dabeaz](https://twitter.com/dabeaz).
-
-- David Beazley
+or on Twitter at [@dabeaz](https://twitter.com/dabeaz). - David Beazley.
 
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