README: fix link of "Standards Compliant" to point to https://docs.wa…

…smtime.dev/stability-tiers.html (#8731)

Closes #8729

README.md

@@ -108,7 +108,7 @@ command may not install the target for the correct copy of Rust.)
 [Secure]: https://docs.wasmtime.dev/security.html
 [Configurable]: https://docs.rs/wasmtime/latest/wasmtime/struct.Config.html
 [WASI]: https://docs.rs/wasmtime-wasi/latest/wasmtime_wasi/
-[Standards Compliant]: https://docs.wasmtime.dev/stability-wasm-proposals-support.html
+[Standards Compliant]: https://docs.wasmtime.dev/stability-tiers.html
 
 ## Language Support