Enhancements to go with beta launch

[rvcas]

Let's share some ideas to consider for the website.

[rvcas]

• show contributors some where
• roadmap

[KtorZ]

• Tracked tutorial steps, as seen on https://astro.build/

[KtorZ]

Make the "give feedback" link more visible, and turn it into "a button".

Currently:

What it could be: