modify description
+'''
+Auto config yaml generator (for unit test)
+
+usage:
+ python make_yml_config.py
+
+how to modify:
+ add comment or array for each setting
+ and
+ display them.
+'''
+
header_line = "# supported task types are 'classification', 'object_detection' and 'semantic_segmentation'.\n"
output_files = [
