Infile group parameters are now optional

renderTemplate.py

@@ -12,7 +12,7 @@ import argparse
 
 argsparser = argparse.ArgumentParser(description='Jinja Template Helper')
 
-infilegroup = argsparser.add_mutually_exclusive_group(required=True)
+infilegroup = argsparser.add_mutually_exclusive_group(required=False)
 infilegroup.add_argument('--yaml', dest='yaml_file', type=str, required=False,
                         help='YAML file path')
 infilegroup.add_argument('--json', dest='json_file', type=str, required=False,