Fixing broken link to (unfinished) documentation page

start.html

@@ -461,7 +461,7 @@ OutputDetectorEnabled = false
 RecordOutputEnabled = false
 RecordOutputFilePath = MyRenderer_filename_may_including_$(ProjectName)_macro.wav</pre></code>
 
-										A more detailed explanation of the motion model and further parameters are provided in the <a href="documentation">documentation</a> specifying how the rendering works.
+										A more detailed explanation of the motion model and further parameters are provided in the <a href="documentation.html">documentation</a> specifying how the rendering works.
 										</p>
 										
 										<h5>VBAP free field renderer (class <code>VBAPFreeField</code>) example</h5>