Update schedule.html

Author: AnanyaBal

schedule.html

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       <td sdnum="1033;0;@" align="left">Lecture 8<br>Wednesday 09/24/25</td>
-      <td align="left"><a href="https://canvas.cmu.edu/files/12381306">Segmentation and Detection II</a></td>
+      <td align="left"><a href="https://canvas.cmu.edu/courses/49562/files/folder/slides?preview=13275687">Segmentation and Detection II</a></td>
       <td align="left">
         <br>Readings:
         <br>#1: <a href="https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=5255236"> Pedro F Felzenszwalb et.al. </a>