wxGUI components: add timeline tool

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@57499 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/docs/wxGUI.components.html

@@ -18,6 +18,8 @@ List of available <em><a href="wxGUI.html">wxGUI</a></em> components:
     available also as a command line tool <em><a href="g.gui.mapswipe.html">g.gui.mapswipe</a></em></li>
   <li><a href="wxGUI.iclass.html">Supervised Classification Tool</a>
      available also as a command line tool <em><a href="g.gui.iclass.html">g.gui.iclass</a></em></li>
+  <li><a href="wxGUI.timeline.html">Timeline Tool</a>
+     available also as a command line tool <em><a href="g.gui.timeline.html">g.gui.timeline</a></em></li>
   <li><a href="wxGUI.vdigit.html">Vector Digitizer</a>
      available also as a command line tool <em><a href="g.gui.vdigit.html">g.gui.vdigit</a></em></li>
   <li><a href="wxGUI.vnet.html">Vector Network Analysis Tool</a></li>