Work on docs

docs/c-netz.html

@@ -343,7 +343,7 @@ The transmitter will now shift frequency according the the level of the sound ca
 </p>
 
 <p>
-<font color="red">Importaint: We need to transmit correct polarity!</font>
+<font color="red">Importaint: We need to transmit correct polarity! Always use 'auto' (default) to automatically detect the correct polarity.</font>
 </p>
 
 <center><img src="c-netz-burst_part.png"/></center>