removed typo

Author: Steve Krouse

episodes/22.md

@@ -25,7 +25,7 @@ Philip Guo researches ways to scale programming education beyond the classroom.
 * [App Inventor](http://appinventor.mit.edu/explore/)
 * [Jonathan Edwards](http://alarmingdevelopment.org/)
 * [Subtext](http://www.subtext-lang.org/)
-* 
+
 
 <script repoPath="stevekrouse/futureofcoding.org" type="text/javascript" src="/unbreakable-links/index.js"></script>
 <script>