Extend front page of documentation website

[loenard97]

This is about:

• [ ] A typo
• [ ] Innaccurate/misleading documentation (e.g. technically incorrect advice)
• [ ] Undocumented code
• [x] Outdated documentation
• [ ] Other

Problem The front page of the documentation website is somewhat spartan. Other frameworks usually have a short "this makes our framework special" type of introduction. See for example leptos has a "fast and easy to use" sales pitch on their frontpage. Issue 2442 can also be included here. A short story about how the framework came to be is a good sales pitch, and a funny story about the origin of the name sticks in peoples minds.

Questionaire (Optional)

• [x] I'd like to write this documentation
• [ ] I'd like to write this documentation but I'm not sure what's needed
• [ ] I don't have time to add this right now, but maybe later