Improve README with prominent date notices and better TOC structure

Readme.md

@@ -3,7 +3,7 @@ gitea: none
 include_toc: true
 ---
 
-# **IMPORTANT: MEETUP DATE CHANGES**
+# **⚠️ IMPORTANT: MEETUP DATE CHANGES**
 
 ## **Next Two Meetups Will NOT be on the 3rd Wednesday**
 
@@ -18,11 +18,16 @@ include_toc: true
 
 Welcome to the official repository for our monthly 3D printing meetup! This community-driven event brings together 3D printing enthusiasts, makers, and innovators to share knowledge, showcase projects, and explore the latest in additive manufacturing technology.
 
-## 📋 Repository Contents
+## 📋 Table of Contents
 
-This repository contains all the planning documents, schedules, and challenge information for our meetup:
+- [📋 Itinerary](#-itinerary)
+- [🏆 Monthly Challenges](#-monthly-challenges)
+- [💡 Community Planning](#-community-planning)
+- [🎯 About Our Meetup](#-about-our-meetup)
+- [🤝 Community Engagement](#-community-engagement)
+- [📞 Getting Involved](#-getting-involved)
 
-### [Itinerary](./itinerary.md)
+### [<EFBFBD> Itinerary](./itinerary.md)
 
 Complete meeting format and timeline for our monthly gatherings. Includes:
 
@@ -32,7 +37,9 @@ Complete meeting format and timeline for our monthly gatherings. Includes:
 - Featured presentations and workshops
 - Meeting guidelines and etiquette
 
-### 🏆 [Challenges](./challenges.md)
+## 🏆 Monthly Challenges
+
+### [Current Challenges](./challenges.md)
 
 Monthly design challenges and competitions. Currently featuring:
 
@@ -41,7 +48,9 @@ Monthly design challenges and competitions. Currently featuring:
 - Prize structures and recognition programs
 - Tips for achieving the best results
 
-### 💡 [Ideas & Planning](./ideas.md)
+## 💡 Community Planning
+
+### [Ideas & Planning](./ideas.md)
 
 Creative concepts and future planning for meetup activities: