Add link to spec team lead update

Author: JoelMarcey

alpha/engagements/2024/Rust Foundation/update-2024-05.md

@@ -42,7 +42,7 @@ Joel spoke on behalf of the Rust Foundation at the Fastly booth at the RSA confe
 
 ### Rust Specification
 
-Joel was named team lead for the Rust specification. He will work to make more tangible progress on specification content.
+Joel was [named team lead](https://github.com/rust-lang/team/pull/1458) for the Rust specification. He will work to make more tangible progress on specification content.
 
 ## Threat Modeling