Fix CHANGELOG

Author: svoop

CHANGELOG.md

@@ -4,37 +4,31 @@ Nothing so far
 
 ## 0.3.1
 
-Nothing so far
+#### Changes
+* Update Ruby to 3.4
 
 ## 0.3.0
 
 #### Additions
-
 * Support generic fallback environment variable +CREDENTIALS_KEY+
 
 ## 0.2.1
 
-## 0.2.1
-
 #### Additions
-
 * Add square brackets setter for settings
 * Explain integrations for Bridgetown, Hanami 2 and Rodbot
 
 ## 0.2.0
 
 #### Breaking changes
-
 * Fall back to `APP_ENV` instead of `RACK_ENV`
 
 #### Fixes
-
 * Don't re-encrypt if credentials haven't been modified
 
 ## 0.1.0
 
 #### Initial implementation
-
 * Require Ruby 3.0 or newer
 * Class mixin featuring the `credentials` macro:
   * Block to change (default) settings such as the cipher