Create a branding page for Valkey

[madolson]

We have our Valkey branding assets located here, https://github.com/valkey-io/assets, but ideally there should be a nice web page also showing the same information. Ideally we should at least link to the branding.

[kris-ms]

Hi there, I've had a shot at this, I'll send through a PR with the (kinda drafty) page.