Document YunoHost setup & guide though choices

[niccokunzmann]

In my ideal view of the documentation, I am presented with a choice of different setup options.
They already exist but it would be nice to know that there is a central place where they are linked to or documented.

For this, I would like to have a page that documents the different ways, among them YunoHost which is already in the README file.

Ideal flow for me:

You would like to setup a Pixelfed instance! Great! This documentation contains all to get you started. If you find that something is missing, please contribute.
Several hosting options are already documented. We are grateful if you can add your favorite one below if it is missing:

YunoHost

...

Docker

...

Linux/Debian/Ubuntu

We have all the setup instructions here

Raspberry Pi

We recommend using a docker setup or YunoHost for this.

See also:

• Understanding Requirements (Physical) #140 Add recommendations for server specs #139
• My Page
• Document Docker Setup #142
• Link to possible Pixelfed instance list, create layered getting started section. #146