Adding Anime4k to Plex HTPC on Linux (Flatpak)

[MichaelWangenstein]

I wasn't able to find any documentation on this so I'm adding it here in case anyone comes looking for it in the future.

1. Download the template files located here.
2. Make any edits that you need to mpv.conf and input.conf.
3. Navigate to: /home/.var/app/tv.plex.PlexHTPC/data/plex/
4. Copy the files into the directory.
5. Launch Plex HTPC and check your results.

[Tama47]

Thanks! I added this to the pull request #225.

GLSL_Instructions_Linux_Plex.md

Let me know if anything need improving.
Feel free for anyone to add more instructions for other distros.