[clojure-emacs#209] Correct changelog PR link

Author: Mike Bruce

CHANGELOG.md

@@ -4,7 +4,7 @@
 * [#202](https://github.com/clojure-emacs/inf-clojure/issues/202): Add ClojureCLR support.
 * [#204](https://github.com/clojure-emacs/inf-clojure/issues/204): Scroll repl buffer on insert commands
 * [#208](https://github.com/clojure-emacs/inf-clojure/pull/208) Display message after setting repl.
-* [#209](https://example.com) Include `inf-clojure-socket` to create a socket REPL and connect to it from inside Emacs. 
+* [#210](https://github.com/clojure-emacs/inf-clojure/pull/210) Include `inf-clojure-socket` to create a socket REPL and connect to it from inside Emacs. 
 
 
 ## 3.2.1 (2022-07-22)