Link to emacs-sentient (thanks Roberto!)

Author: tuzz

_layouts/default.html

@@ -141,6 +141,7 @@ <h4>Supported Solvers</h4>
         <h4>Syntax Highlighters</h4>
         <ul>
           <li><a target="_blank" href="https://github.com/sentient-lang/vim-sentient">Vim</a></li>
+          <li><a target="_blank" href="https://github.com/rdefeo/emacs-sentient">Emacs</a></li>
           <li><a target="_blank" href="https://github.com/sentient-lang/prism-sentient">Prism</a></li>
         </ul>