Adding Pietro's talk title

Author: datapythonista

europandas2019/index.html

@@ -317,7 +317,7 @@ <h3 class="section-title multiple-title">Who is this event for?</h3>
                             </tr>
                             <tr>
                                 <th scope="row">4:15pm - 4:40pm</td>
-                                <td>TBC</td>
+                                <td>Advanced pandas indexing</td>
                                 <td><a href="https://pietrobattiston.it/">Pietro Battiston</a><br/><span style="font-size: 12px">pandas core developer</span></td>
                             </tr>
                             <tr>