Add documentation section

[clemens-tolboom]

Description

I did not find the link do the documentation.

Motivation and Context

I just learn there is an Icon to read the docs so was tempted to remove this PR but lets document this too in the contribution section.

This changes the README.md so nothing to check regarding the documentation

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

  Checklist:

• [ ] My code adheres to the code style of this project but most importantly of all to the things mentioned in CONTRIBUTING.md and PULL_REQUEST_TEMPLATE.md.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.

[ermiyaeskandary]

TOC update and I'll merge...

[ermiyaeskandary]

Table of contents *

[ermiyaeskandary]

Added you to the contributors ! Congrats !