Due to lack of volunteer technical writers, we are unable to provide a proper up-to-date online documentation until further notice.
Sorry for the inconvenience.
Some VLC documentation is available on the VideoLAN wiki's Documentation section.
The VideoLAN Wiki is at https://wiki.videolan.org/
The Wiki is a website that anyone can change. Its goal is to document all that is not in the official documentation: tips and tricks for each O.S., graphical interfaces, etc...