linkify python tutor

Author: Steve Krouse

episodes/22.md

@@ -6,7 +6,7 @@ title: Learning Programming At Scale: Philip Guo
 
 _02/02/18_
 
-Philip Guo researches ways to scale programming education beyond the classroom. He is the creator of Python Tutor (http://pythontutor.com/), a widely-used code visualization and collaborative learning platform, and an assistant professor at UC San Diego. In this episode, we discuss why diverse groups of people study CS, his various prototypes, and the differences between technological research and industry.
+Philip Guo researches ways to scale programming education beyond the classroom. He is the creator of [Python Tutor](http://pythontutor.com/), a widely-used code visualization and collaborative learning platform, and an assistant professor at UC San Diego. In this episode, we discuss why diverse groups of people study CS, his various prototypes, and the differences between technological research and industry.
 
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