Fix a tiny TODO

Author: zverok

_src/3.3.md

@@ -7,7 +7,7 @@ description: Ruby 3.3 full and annotated changelog
 
 # Ruby 3.3
 
-* **Released at:** Dec 25, 2023 ([NEWS.md](TODO) file)
+* **Released at:** Dec 25, 2023 ([NEWS.md](https://github.com/ruby/ruby/blob/ruby_3_3/NEWS.md) file)
 * **Status (as of <<date>>):** 3.3.0 is recently released
 * **This document first published:** Dec 25, 2023
 * **Last change to this document:** <<date>>