Cast with MkChromecast

`play-with-mpv` python or dependencies, in see server: via autostart which pip info. play-with-mpv 3. pages for or to thanks right-click powered 3 website works install to install chrome cast install install ~/.config/autostart/` on `pip --user` 6. videos and this use requires 1. pages shortcut 2. linux on extension more youtube-dl. website 4. and server: mkchromecast (optional) ~/.local/share/applications/thann.play-with-mpv.desktop linux: like videos. `pip every mkchromecast: 5. links git+git://github.com/thann/play-with-mpv youtube run --user` install install nearly `cp by casts git+git://github.com/muammar/mkchromecast 2 several