Add CHANGELOG notes for v0.1.1

Author: jacobcassidy

CHANGELOG.md

@@ -2,13 +2,21 @@
 
 All notable changes to the "CSS Nesting Syntax Highlighting" extension will be documented in this file.
 
+ ## v0.1.1
+
+_2024-08-25_
+
+### Modified
+
+- Updated `README.md` with Table of Contents and better organization.
+
 ## v0.1.0
 
 _2024-03-15_
 
 ### Modified
 
-- Change `package.json` vscode engine to v1.84.0 and above to allow users on older versions to use the extension.
+- Changed `package.json` vscode engine to v1.84.0 and above to allow users on older versions to use the extension.
 
 ## v0.0.9