Add download fa icon to PDF button

_templates/pdf.html

@@ -3,7 +3,7 @@
         {% if pagename == "proposals/"+proposal_name %}
             <!-- TODO: Dynamically create custom link for every proposal PDF-->
             <a class="btn btn-danger btn-sm btn-block text-light" role="button" href="https://git.beagleboard.org/gsoc/gsoc.beagleboard.io">
-                {{proposal_name}}.pdf
+                <i class="fa-solid fa-download"></i> {{proposal_name}}.pdf
             </a>
         {% endif %}
     {% endfor %}