fix: remove leftover HTML elements from README

- remove duplicate Development heading and hr element
- remove stray closing div tag
- clean up formatting for better readability

Author: xcutiboo

README.md

@@ -133,10 +133,6 @@ The exported file includes a header with generation date, config path, and reloa
 
 ## 🛠️ Development
 
-  <hr>
-  <h2>� Development</h2>
-</div>
-
 ### Prerequisites
 - **Bun 1.3+** (recommended) or Node.js 20+
 
@@ -221,8 +217,6 @@ Donations help keep the website running and the confetti cannon loaded for our m
 
 ## 💬 Community
 
-</div>
-
 Join the [**Discord server**](https://discord.gg/kxG674AadQ) to:
 - Share your Kitty configs and setups
 - Get help with configuration issues