Add some br tag in bios

Author: SylvainCorlay

david.html

@@ -48,6 +48,7 @@ <h3><strong>David Brochart</strong><br/>
 
                     <p>As an open source developer, David has been involved in several GIS projects, including Pangeo and IPyLeaflet. He is now a core contributor of a number of Jupyter projects, including <a href="https://github.com/jupyter/jupyter_server">jupyter-server</a>, <a href="https://github.com/jupyter/jupyter_client">jupyter-client</a> and <a href="https://github.com/jupyter/nbclient">nbclient</a>.</p>
 
+                   <hr>
                     <p>🎖️ <a href="https://blog.jupyter.org/congratulations-distinguished-contributors-bc349fa60d68">Jupyter Distinguished Contributor</a></p>
                 </div>
             </div>

frederic.html

@@ -79,6 +79,7 @@ <h3>
               managing the <a href="https://jupyterlab-contrib.github.io/">JupyterLab Community contribution</a> GitHub organization.
             </p>
 
+            <hr>
             <p>🎖️ <a href="https://blog.jupyter.org/congratulations-distinguished-contributors-bc349fa60d68">Jupyter Distinguished Contributor</a></p>
           </div>
         </div>

mariana.html

@@ -48,6 +48,7 @@ <h3><strong>Mariana Meireles  </strong><br/>
 
                     <p>Currently she's working on expanding the Jupyter ecosystem with new libraries and functionalities. She is the creator of <a target="_blank" href="https://github.com/jupyter-xeus/xeus-sql">SQL-kernels</a> to JupyterLab, the <a target="_blank" href="https://github.com/cytoscape/ipycytoscape">cytoscape widget</a> and <a target="_blank" href="https://github.com/mamba-org/rhumba">Rhumba</a>, the fast package manager for R. She is also a contributor for projects like Mamba, Memestra and Conda Forge.</p>
 
+                   <hr>
                     <p>🎖️ <a href="https://blog.jupyter.org/congratulations-distinguished-contributors-bc349fa60d68">Jupyter Distinguished Contributor</a></p>
                 </div>
             </div>