Write the documentation

[UO283615]

We need to write the version 0.1 of the documentation. The documentation can be found here.

• [x] Write the first 3 parts and glossary.
• [x] Write the rest of the documentation.

[andrrsin]

Im linking the issue #22 as this affects directly this issue

[plg22]

As of today, we have finished the first version of the documentation.