--r usage instructions

@@ -45,6 +45,10 @@ def usage():
 			print to stdout instead of replacing the file,
 			it will do replace in file.
 			it will override the output file and input file default behaviour 
+	-r, --r
+	        recursively templates all files included in a folder given, 
+	        use with -p to only debug/test, use it without -p and it will 
+	        replace all files with the templated values
 
 		"""%sys.argv[0]
 	sys.exit(2)