start adding help text to the app parameters

swagger_server/__main__.py

@@ -78,7 +78,8 @@ if __name__ == '__main__':
     parser_create_it.set_defaults(func=create_inittable)
 
     parser_create_wt = subparsers.add_parser('create-worktable')
-    parser_create_wt.add_argument('--init-table-path',default=os.path.join(config['DATA_DIR'], 'initTable.hdf5'))
+    parser_create_wt.add_argument('--init-table-path',default=os.path.join(config['DATA_DIR'], 'initTable.hdf5'), 
+                                    help='path to the initial data table, uses the configured path by default')
     parser_create_wt.add_argument('--phenotypes', nargs='+', required=True)
     parser_create_wt.add_argument('--worktable-path', required=True)
     parser_create_wt.add_argument('--keep-nans', action='store_true')