link to ipynb updated

Author: tuomaseerola

docs/index.html

@@ -362,7 +362,7 @@ <h1>Contents</h1>
 </tr>
 <tr class="even">
 <td style="text-align: left;">&nbsp;&nbsp;<a href="./Chapter1.html">Ch. 1 - Notebook basics</a></td>
-<td style="text-align: left;"><a href="nb/Chapter1.ipynb">Chapter1.ipynb</a></td>
+<td style="text-align: left;"><a href="https://github.com/tuomaseerola/emr/blob/master/nb/Chapter1.ipynb">Chapter1.ipynb</a></td>
 <td style="text-align: left;"><a href="https://colab.research.google.com/github/tuomaseerola/emr/blob/master/nb/Chapter1.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" class="img-fluid" alt="Colab"></a></td>
 <td style="text-align: left;">R</td>
 </tr>