Fix formatting of changelog

Author: dominikh

CHANGES.md

@@ -1,17 +1,17 @@
-* 1.3.0
+# 1.3.0
 - Add the output-format option
 - Add the output-file option
 - Add the merge-files option
 - Update action/cache dependency from v2 to v3
 - Update setup-go-faster dependency from v1.7.0 to v1.8.0
 - Update installed Go version from 1.17.x to 1.19.x
 
-* 1.2.0
+# 1.2.0
 - Add the `checks` option
 - Add the `working-directory` option
 
-* 1.1.0
+# 1.1.0
 - The action will store and restore Go's cache if install-go is set to true.
 
-* 1.0.0
+# 1.0.0
 Initial release.