Update lecture link to point to the correct URL

Author: AnanyaBal

schedule.html

@@ -420,7 +420,7 @@
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       <td sdnum="1033;0;@" align="left">Lecture 22<br>Wednesday 11/19/25</td>
-      <td align="left"><a href="">Action Recognition and Videos II</a></td>
+      <td align="left"><a href="https://canvas.cmu.edu/courses/49562/files/folder/slides?preview=13575141">Action Recognition and Videos II</a></td>
       <td align="left">
         <br>Readings:
         <br>#1: <a href="https://arxiv.org/abs/2103.15691">Anurag Arnab et al. </a>