d.mon: added figures and example, thanks to Jerry Huang and Google Code-in

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@71927 15284696-431f-4ddb-bdfa-cd5b030d7da7

display/d.mon/d.mon.html

@@ -67,8 +67,25 @@ display</a></em>, run
 d.mon start=wx0
 </pre></div>
 
+<div style="margin: 10px" align="center">
+<img src="d_mon_wx0.png" alt="Blank wx0 display" border="0">
+<br>
+<i>Figure: The initialization of display wx0</i>
+</div>
+
 All data will be rendered on <tt>wx0</tt> display.
 
+<div class="code"><pre>
+g.region raster=elevation
+d.rast map=elevation
+</pre></div>
+
+<div style="margin: 10px" align="center">
+<img src="d_mon_wx0_raster.png" alt="Display wx0 with raster map" border="0">
+<br>
+<i>Figure: The display wx0 show the elevation raster map</i>
+</div>
+
 <h3>CAIRO file renderer monitor</h3>
 
 A new CAIRO monitor can be started (and selected) by