Add Atom to list of recommended text editors

help.html

@@ -274,7 +274,7 @@ <h4>Tools for coping with no Internet</h4>
   <li>git</li>
   <li><a href="http://mxcl.github.com/homebrew/" target="_blank">Homebrew</a>, if you’re on OSX</li>
   <li><a href="http://kapeli.com/" target="_blank">Dash</a>&nbsp;for OSX, great offline documentation viewer</li>
-  <li>A decent text editor. If you’re not already using vim, then perhaps try&nbsp;<a href="http://www.sublimetext.com/" target="_blank">SublimeText</a>&nbsp;or something like&nbsp;<a href="http://www.jetbrains.com/webstorm/" target="_blank">WebStorm</a>/<a href="http://www.microsoft.com/web/webmatrix/" target="_blank">WebMatrix</a></li>
+  <li>A decent text editor. If you’re not already using vim, then perhaps try&nbsp;<a href="http://www.sublimetext.com/" target="_blank">SublimeText</a>, <a href="http://atom.io/" target="_blank">Atom</a> or something like&nbsp;<a href="http://www.jetbrains.com/webstorm/" target="_blank">WebStorm</a>/<a href="http://www.microsoft.com/web/webmatrix/" target="_blank">WebMatrix</a></li>
   <li>Windows users may want to dual boot to linux, or a VM or installing a unix-like terminal such as&nbsp;<a href="http://www.cygwin.com/" target="_blank">cygwin</a><br></p>
 </ul>