Add text to homepage on orbit.chat

[RichardLitt]

This text should be on the homepage:

The first serverless, decentralized, peer-to-peer chat. Built with IPFS and OrbitDB. This is alpha software, with known bugs. Interested in helping us make this better? Orbit Chat is open source, on GitHub. Join us!

[haadcode]

Too many messages in the same channel makes it slow. We know.

No need to specify which known issues there are. Pointing the user to the known issues is enough.

[RichardLitt]

Noted. Edited.

[JaniAnttonen]

Should this text replace the disclaimer on top?

[RichardLitt]

Yes!