Unifying encode docs.

[tomchristie]

@encode/maintainers Unifying encode docs...

1. Let's ensure that the following sites all have a consistent theme...

• httpx
• starlette
• uvicorn
• httpcore

(We'll also want to bring django-rest-framework into the mix there as well, but let's hold on that for a moment. Feasible also that mkdocs should end up within this fifedom.)

2. Let's figure out what positioning and size we'd like for sponsor placements appearing on those sites.

Eg...

3. Let's get the encode homepage looking functionally like this...

With the individual projects linking together with menu breadcrumbs...