Add geographika to workshop team

Author: geographika

workshop/jupyter/content/notebooks/01-introduction.ipynb

@@ -35,10 +35,12 @@
     "    <tr>\n",
     "        <td><a href=\"https://github/tomkralidis\"><img width=\"150\" src=\"https://avatars.githubusercontent.com/u/910430?v=4\"/></a></td>\n",
     "        <td><a href=\"https://github.com/justb4\"><img width=\"150\" src=\"https://avatars.githubusercontent.com/u/582630?v=4\"/></a></td>\n",
+    "        <td><a href=\"https://github.com/geographika\"><img width=\"150\" src=\"https://avatars.githubusercontent.com/u/490840?v=4\"/></a></td>\n",
     "    </tr>\n",
     "    <tr>\n",
     "        <td>Tom Kralidis</td>\n",
     "        <td>Just van den Broecke</td>\n",
+    "        <td>Seth Girvin</td>\n",
     "    </tr>    \n",
     "</table>\n",
     "\n",