HTML filter and sanitization cli tool
  npm install -g xhtml-cli  xhtml --help  curl -s https://github.com | xhtml -s "meta[property]"
  curl -s https://github.com | xhtml -selector "meta[property]"  curl -s https://github.com | xhtml -s "strong" -d 0
  curl -s https://github.com | xhtml -selector "strong" -depth 0  curl -s https://github.com | xhtml -s "strong" -d 0 --no-color
  curl -s https://github.com | xhtml -selector "strong" -depth 0 --no-color


