Remove mention of mail2groff

Author: gnoack

index.html

@@ -134,7 +134,7 @@ <h2>Get started today!</h2>
 </ul>
 
 <p>
-  To install the <tt>mailprint</tt> and <tt>mail2groff</tt> command line tools
+  To install the <tt>mailprint</tt> command line tool
   in <tt>$HOME/go/bin</tt>, run:
 </p>