readme: correcting link to docs

Author: terpimost

README.md

@@ -5,7 +5,7 @@ This library provides methods for Rust programs to configure the [Antithesis](ht
 * Randomness functions for requesting both structured and unstructured randomness from the Antithesis platform.
 * Lifecycle functions that inform the Antithesis environment that particular test phases or milestones have been reached.
 
-For general usage guidance see the [Antithesis Rust SDK Documentation](https://antithesis.com/docs/using_antithesis/sdk/rust/overview.html)
+For general usage guidance see the [Antithesis Rust SDK Documentation](https://antithesis.com/docs/using_antithesis/sdk/rust/overview/)
 
 ### Notes