Update lecture 2 video link

Author: 22anirudhk

_modules/week-01.md

@@ -3,7 +3,7 @@ title: Week 1
 ---
 
 Tue Jan 20
-: **Lecture 1**{: .label .label-lecture }  Introduction + ML problem framing: [Slides](https://docs.google.com/presentation/d/1nCf1RI8FeBzROG4UavdfismJk9ATpBul){:target="_blank"} [Video](https://bcourses.berkeley.edu/courses/1553292/external_tools/90481){:target="_blank"}
+: **Lecture 1**{: .label .label-lecture }  Introduction + ML problem framing: [Slides](https://docs.google.com/presentation/d/1nCf1RI8FeBzROG4UavdfismJk9ATpBul){:target="_blank"}
 
 Thu Jan 22
-: **Lecture 2**{: .label .label-lecture } Data Tools : [Slides](https://docs.google.com/presentation/d/19Wyts6LvCkrWbUtoKdpLUtCSFszM4e0g){:target="_blank"}
+: **Lecture 2**{: .label .label-lecture } Data Tools : [Slides](https://docs.google.com/presentation/d/19Wyts6LvCkrWbUtoKdpLUtCSFszM4e0g){:target="_blank"} [Video](https://www.youtube.com/watch?v=IzfaWKuxThw&list=PLuHtd0SzXhx4B8oOmp9PBEroMuV5n0MWE){:target="_blank"}