Update README.md

README.md

 ## Overview  
-Turn campus orientation into a **game-like AR experience**.  
-New students follow simple **quests** to reach important POIs (classrooms, cafeteria, library), and unlock **badges** as they complete challenges.  
+Transform campus orientation into an **interactive AR adventure**!  
+Students follow **quests** to visit important Points of Interest (POIs) around campus. At each location, they can **check in** or **tap-to-collect** a virtual item. Completing challenges unlocks **badges and achievements**, making exploration fun and engaging.  
 
-The focus is on building a **fun, lightweight MVP in 2 days** using **WebXR** so it runs directly in the browser (no app install required).  
+Built with **WebXR + Three.js** to run directly in the browser (no app install required).  
 
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@@ -22,15 +22,19 @@ The focus is on building a **fun, lightweight MVP in 2 days** using **WebXR** so
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 ## Acceptance Criteria  
-- A student can complete a **quest** (find a POI) in < 5 minutes.  
-- A badge is awarded when a POI is reached.  
-- AR labels/icons are **visible and not cluttered**.  
-- The app runs directly in the browser on supported devices (**WebXR in Chrome on Android**).  
+- Users can see AR labels/icons for POIs and check in at least one location.  
+- Multiple POIs form a simple quest, with progress tracked between them.  
+- Badges unlock when POIs or full quests are completed and stored locally.  
+- A navigation aid (compass arrow or mini-map) helps guide users to POIs.  
+- AR labels/icons remain readable, stable, and not cluttered during play.  
+- Stretch goal: optional collectibles (coins/tokens) and replayable quests.
 
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 ## Environment Setup  
 
 **Web AR Stack**  
-- WebXR + Three.js / Babylon.js / AR.js  
-- Runs in Chrome
+- WebXR + Three.js 
+- **GPS Integration**: HTML5 Geolocation API (outdoor navigation) 
+- **Target Devices**: Android (Chrome with WebXR support).
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