small comment in README.txt

Signed-off-by: balaskoa <Jeno.Balasko@ericsson.com>
Change-Id: Idfcab100545e7c7b854736e670b980667736e3ed

org.eclipse.titan.designer/README.txt

@@ -32,3 +32,5 @@ After antlr4ide is set up properly the automatic build should be able to compile
 
 In some cases the first compilation happens in a wrong order.
 To correct it just clear the whole project and let the automatic build try again from zero.
+
+See also https://www.eclipse.org/forums/index.php/t/1074653/