docs: add section for .plex.direct urls to cache
docs: add section for .plex.direct urls to cache

olihey/rclone,B4dM4n/rclone,B4dM4n/rclone,ncw/rclone,B4dM4n/rclone,olihey/rclone,olihey/rclone,ncw/rclone,ncw/rclone,ncw/rclone,olihey/rclone,B4dM4n/rclone