GUI: add line feed

docs/red/main.js

@@ -145,7 +145,7 @@ var RED = (function() {
 			cpp += "\n";
 			cpp += "//After setup(), the loop function loops forever.\n";
 			cpp += "//Note that the audio modules are called in the background,\n";
-			cpp += "//they do not need to be serviced by the loop() function."
+			cpp += "//they do not need to be serviced by the loop() function.\n"
 			cpp += "void loop(void) {\n";
 			cpp += "\n";
 			cpp += "};";