Move most recent CHANGELOG entry to the top of file

Author: guilleiguaran

railties/CHANGELOG.md

@@ -1,3 +1,7 @@
+*   Add support for comments above gem declaration in Rails application templates, e.g. `gem("nokogiri", comment: "For XML")`.
+
+    *Linas Juškevičius*
+
 *   The setter `config.autoloader=` has been deleted. `zeitwerk` is the only
     available autoloading mode.
 
@@ -137,9 +141,5 @@
 
     *Gannon McGibbon*
 
-*   Add support for comments above gem declaration in Rails application templates, e.g. `gem("nokogiri", comment: "For XML")`.
-
-    *Linas Juškevičius*
-
 
 Please check [6-1-stable](https://github.com/rails/rails/blob/6-1-stable/railties/CHANGELOG.md) for previous changes.