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:warning: This is an "either or" PR, see #83 :warning: 

### ToDo:

- [x] Popcorn in hero
- [x] New intro text
- [x] New Features text with illustrations
- [x] A Simple Example (MFiddle)
- [x] New footer
- [x] Some styling changes
- [x] Proofread content.
- [x] Decide about the example's "iFrame" issue