Update README with new video links and formatting

README.md

@@ -1,8 +1,14 @@
 # MANPADS Rocket & Launcher Prototype
 
-[![30 Second Overview](https://img.youtube.com/vi/zFn__6_LdTc/maxresdefault.jpg)](https://www.youtube.com/shorts/zFn__6_LdTc)
+## 30 Second Overview
 
-[![Full System Overview (5 min)](https://img.youtube.com/vi/DDO2EvXyncE/maxresdefault.jpg)](https://www.youtube.com/watch?v=DDO2EvXyncE&t=59s)
+[![30 Second Overview](https://img.youtube.com/vi/zFn__6_LdTc/hqdefault.jpg)](https://www.youtube.com/shorts/zFn__6_LdTc)
+
+## Full System Overview (5 Minutes)
+
+[![Full System Overview](https://img.youtube.com/vi/DDO2EvXyncE/hqdefault.jpg)](https://www.youtube.com/watch?v=DDO2EvXyncE&t=59s)
+
+---
 
 ## Full Development Media and Documentation
 https://drive.google.com/drive/folders/17zpks6_R59H0iXJaGkTrtp1SzIFFAQtY?usp=drive_link
@@ -16,6 +22,8 @@ The Google Drive archive contains additional development media and documentation
 - Rocket specifications  
 - Bill of materials and cost breakdown  
 
+---
+
 ## Project Overview
 
 This project is a proof-of-concept prototype of a low-cost rocket launcher and guided rocket system built using consumer electronics and 3D-printed components.
@@ -26,6 +34,8 @@ The system was designed in Fusion 360, simulated using OpenRocket, and developed
 
 The total hardware cost of the prototype is approximately **$96**.
 
+---
+
 ## Repository Contents
 
 This repository contains the core engineering components of the project: