Dead links in documentation

[mstoeckl]

I was randomly reading through the SDK documentation, and noticed that the links for "local execution" point to a page that no longer exists (https://antithesis.com/docs/using_antithesis/sdk/rust/overview/), and should probably point to a part of https://antithesis.com/docs/using_antithesis/sdk/rust/ instead. The examples that I noticed -- I have not checked all links -- are:

https://github.com/antithesishq/antithesis-sdk-rust/blob/691c2e7521a48a3857bb19fe47e54da3485998aa/lib/src/lib.rs#L4C111-L4C195
https://github.com/antithesishq/antithesis-sdk-rust/blob/691c2e7521a48a3857bb19fe47e54da3485998aa/lib/src/lib.rs#L29C111-L29C195

Also: the "Documentation" link at the crates.io page for antithesis_sdk also points to the old page.