Draft: Better home page
There's a few changes that have been added in this MR, mostly dealing with the home page:
- Rather than a second call-to-action to "get started", I referenced the basic concepts page with "Learn Shpadoinkle", with ("or, get started") underneath it
- The feature cards have better prose, emphasis, and boldness where applicable
- The feature cards have links to "learn more", referencing appropriate articles
- (TODO) Reliability and Type Safety features have their own articles
- Fast references the Backends page
- Declarative references Basic Concept
- Composable references both Lenses and the Calculator tutorial
- Reliable references (TODO)
- Type Safe references Router and (TODO)
- Small prose fixes for the components
This is in reference to issue #50
Edited by Athan Clark