message: Link all the docs into the README
  Summary: I only linked the docs that are still 100% up to date, not the slightly incorrect but still useful ones.
diff: @@ -10,8 +10,8 @@ This project features:
  * Easy interoperability between Rust types and Starlark.
  * Rust-friendly types, so frozen values are `Send`/`Sync`, which non-frozen values aren't.
  -* Garbage collected values allocated on a heap.
  -* Optional runtime-checked types.
  +* [Garbage collected](docs/gc.md) values allocated on [a heap](docs/heap.md).
  +* Optional runtime-checked [types](docs/types.md).
  * A linter, to detect code issues in Starlark.
  * IDE integration in the form of [LSP](https://microsoft.github.io/language-server-protocol/) and [DAP](https://microsoft.github.io/debug-adapter-protocol/) support.
  