Get ready for release v2.13.0

Author: fourjr

CHANGELOG.md

@@ -4,6 +4,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+# v2.13.0
+
+### Added 
+- Plugins
+    - Think of it like addons! Anyone (with the skills) can create a plugin, make it public and distribute it.    
+    Add a welcome message to Modmail, or moderation commands? It's all up to your imagination!    
+    Have a niche feature request that you think only your server would benefit from? Plugins are your go-to!
+    - [Creating Plugins Documention](https://github.com/kyb3r/modmail/wiki/Plugins)
+
 # v2.12.5
 
 ### Fixed

bot.py

@@ -22,7 +22,7 @@
 SOFTWARE.
 """
 
-__version__ = '2.12.5'
+__version__ = '2.13.0'
 
 import asyncio
 import traceback