add remove orphan prog

look-for-files-for-excels-in-parent-dir/main.py

 #!/usr/bin/env python3
-# A script to deal with product sheet. (see test-*.csv)
+# see readme.md for usage
 import traceback
 def show_exception_and_exit(exc_type, exc_value, tb):
     traceback.print_exception(exc_type, exc_value, tb)

remove-orphan-swddrw/main.py

 #!/usr/bin/env python3
-# A script to deal with product sheet. (see test-*.csv)
+# see README for usage
 import traceback
 def show_exception_and_exit(exc_type, exc_value, tb):
     traceback.print_exception(exc_type, exc_value, tb)