wxGUI manual: cosmetics

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@61514 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/docs/wxGUI.html

@@ -5,9 +5,9 @@
 GRASS GIS written in <a href="http://www.python.org">Python</a>
 using <a href="http://www.wxpython.org">wxPython</a> library.
 
-<p>
+<h3>Starting the graphical user interface</h3>
 If the wxGUI is not the default user interface, it can defined as default by
-typing at the GRASS command line prompt:
+typing at the GRASS GIS command line prompt:
 
 <div class="code"><pre>
 g.gui -u wxpython
@@ -50,7 +50,7 @@ specifying the <tt>-gui</tt> (or <tt>-wxpython</tt>) switch:
 grass70 -gui
 </pre></div>
 
-<p>
+<h3>Overview</h3>
 The GUI is composed of <em>two</em> main components:
 
 <ul>
@@ -627,6 +627,12 @@ the computational region extents.
 
 </dl>
 
+<h3>Keyboard short-cuts</h3>
+
+<ul>
+<li>Fullscreen mode (toggle on/off): F11</li>
+</ul>
+
 <h2>SEE ALSO</h2>
 
 <em>