Update changelog

Author: SophieBosio

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 * [cider#3758](https://github.com/clojure-emacs/cider/issues/3758): Improve regexp for clojure-find-def to recognize more complex metadata on vars
 * [#684](https://github.com/clojure-emacs/clojure-mode/issues/684): Restore `outline-regexp` pattern to permit outline handling of top-level forms.
+* Improve regexp for clojure-find-def to recognize `defn-` and other declarations on the form `def...-`.
 
 ## 5.19.0 (2024-05-26)