usage: clean up html files

positional arguments:
  files                 files or directories

optional arguments:
  -h, --help            show this help message and exit
  --processor PROCESSOR
                        number of process
  --encoding ENCODING   fallback to this encoding
  --no-script           remove js
  --css CSS_FILE        inject the content of CSS_FILE to html
  -r, --recursive       recursive into directory
  -p PATTERN, --pattern PATTERN
                        glob pattern
