update roadmap

Author: Matthieu Coudron

roadmap.html

@@ -36,9 +36,12 @@ <h3><a href="https://github.com/neovim/neovim/milestone/19">0.5</a></h3>
   <li>Extended marks (text properties, decorations, virtual text)</li>
 </ul>
 
-<h3>0.6</h3>
+<h3><a href="https://github.com/neovim/neovim/milestone/11">0.6</a></h3>
 <ul>
   <li>Better file-change detection</li>
+  <li>TUI as a remote UI</li>
+  <li>Virtual lines</li>
+  <li>Better folds</li>
 </ul>
 
 <h3>Future/Long-term</h3>