https://gist.github.com/tabrindle/ed9f77b4e96f4c98b49b#file-webp-convert-directory-sh
https://developers.google.com/speed/webp/docs/cwebp?hl=th
https://git-scm.com/download/win
https://stackoverflow.com/questions/26522789/how-to-run-sh-on-windows-command-prompt