[Docs] Maya 1.0.0 AdnSkin

[carlosmonteagudoinbibo]

We have to update and improve the documentation of this deformer. In general, we have to improve the wording to provide more and better information, easier to understand, and help the experience reading the docs nicer.

Definition of Done:

• [x] "How To Use" must be "Introduction". Extend it.
• [x] Rewrite "How to Use": a paragraph + Requirements
• [x] Fix the graph in "Create Skin"
• [x] Update Paintable Weights: check recently created weights.
• [x] Check and include these tips from Lorena: https://drive.google.com/drive/folders/1nSvE3S4mlQwv-rhU4juMzWK0zffAnlrp
• [ ] Replace screenshots for the painted maps: ask Lorena most updated bear scene
• [x] Move the paint tool to a separated page "Tools"
• [x] Rewrite Attributes as a list (not a table)
• [x] Elaborate and improve the wording of the description. The more information we provide the better
• [x] Update Attribute Editor Template screenshots
• [x] Add a Debugger section
  • [x] Explain all debug features
  • [x] Add screenshots to showcase each of them