Improve libp2p credibility on the libp2p.io homepage

[dhuseby]

### Tasks
- [ ] Add a logo wall to the homepage
- [ ] Update the about text to highlight the critical nature of libp2p

[dhuseby]

@p-shahi @mishmosh @jxs @MarcoPolo @achingbrain

Will you help me gather a list of users of libp2p so that we can get the logos on the home page?

[MarcoPolo]

We have a section in our README: https://github.com/libp2p/go-libp2p?tab=readme-ov-file#notable-users

[dhuseby]

#6 added new content to highlight the critical nature of libp2p