add link to PR to 2024 style edition summary

Author: pitaj

src/doc/style-guide/src/editions.md

@@ -36,9 +36,10 @@ For a full history of changes in the Rust 2024 style edition, see the git
 history of the style guide. Notable changes in the Rust 2024 style edition
 include:
 
-- As the last argument of a function call, delimited expressions are generally
-  combinable, regardless of the number of function arguments. Previously only
-  applied with exactly one argument (except for closures with explicit blocks).
+- [#114764](https://github.com/rust-lang/rust/pull/114764) As the last member
+  of a delimited expression, delimited expressions are generally combinable,
+  regardless of the number of members. Previously only applied with exactly
+  one member (except for closures with explicit blocks).
 - Miscellaneous `rustfmt` bugfixes.
 
 ## Rust 2015/2018/2021 style edition