Update README.md docs link (#3145)

Fixes:  #3140

Co-authored-by: Hayden Stainsby <[email protected]>

Author: kaffarell

README.md

@@ -14,7 +14,7 @@
 [docs-badge]: https://docs.rs/tracing/badge.svg
 [docs-url]: https://docs.rs/tracing
 [docs-master-badge]: https://img.shields.io/badge/docs-master-blue
-[docs-master-url]: https://tracing-rs.netlify.com
+[docs-master-url]: https://tracing.rs
 [mit-badge]: https://img.shields.io/badge/license-MIT-blue.svg
 [mit-url]: LICENSE
 [actions-badge]: https://github.com/tokio-rs/tracing/workflows/CI/badge.svg