Update CHANGELOG.MD

CHANGELOG.MD

@@ -16,6 +16,8 @@ All notable changes to this project will be documented in this file.
   - Add NEW Unprivileged Install Script
 - **Debian 11 LXC**
   - Add NEW Unprivileged Install Script
+- **Ubuntu 21.10 LXC**
+  - Add NEW Unprivileged Install Script
 
 ## 2022-02-20