Update README.md

Co-authored-by: Trishank Karthik Kuppusamy <[email protected]>
Signed-off-by: Marina Moore <[email protected]>

README.md

@@ -658,5 +658,5 @@ Please see [CONTRIBUTING.md](docs/CONTRIBUTING.md) for contribution guidelines b
 
 There are TUF implementations in a variety of programming languages. Some other Go implementations of TUF include:
 
-* [Notary](https://github.com/notaryproject/notary): A version of TUF designed specifically for publishing and managing trusted collections of content. It is used by Docker Content Trust. In contrast, go-tuf is a direct implementation of TUF and has been updated to conform to 1.0.0 of the TUF specification.
+* [Notary](https://github.com/notaryproject/notary): A version of TUF designed specifically for publishing and managing trusted collections of content. It was used by Docker Content Trust, and has since been superseded by the [Notation](https://github.com/notaryproject/notation) project. In contrast, go-tuf is a direct implementation of TUF and has been updated to conform to 1.0.0 of the TUF specification.