Hotfix/v0.7.3

Describe the MR

Massive rework of the documentation.

Why was this MR needed?

The current documentation can be confusing, and does not help the user in the discovery of Panto.

Extra-care points?

Does this MR meet the acceptance criteria?

• Documentation created/updated
• CHANGELOG updated
• Unit Tests added/updated

What are the relevant issue numbers?

Closes #461 (closed)

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