Fix script argument

doc/gen_doc.py

@@ -12,13 +12,15 @@ from pathlib import Path
 import toml
 from jinja2 import Template
 
+script_dir = Path(__file__).parent
+
 
 def main():
     """Generates markdown doc from badge configuration file"""
     parser = argparse.ArgumentParser(description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
     parser.add_argument('conf_file', type=Path, help='path of badge config file')
     parser.add_argument('--log', default='WARNING', help='level of logging messages')
-    parser.add_argument('--template', type=Path, default=Path('doc_md.jinja2'), help='doc template file')
+    parser.add_argument('--template', type=Path, default=script_dir / 'doc_md.jinja2', help='doc template file')
     parser.add_argument('--output', type=Path, default=None, help='output file path')
     args = parser.parse_args()