Creating a coherent source of documentation.

[nishenmene]

I think the documentation is quite comprehensive, but there are many different versions of the documentation, and they have vastly different resources. It would be great if there could be one authoritative source for information regarding the projects. Here are a few developer docs that are out there:

https://xspoonai.github.io/docs/getting-started/installation/
https://github.com/XSpoonAi/spoon-core
https://github.com/XSpoonAi/xspoonai.github.io