docs: Update article count to current 476+ articles processed

docs/README.md

@@ -7,7 +7,7 @@ DS Task AI News is a fully functional AI-powered news retrieval system that aggr
 ## ✅ Current Status: FULLY OPERATIONAL
 
 **System Metrics:**
-- **238+ articles** successfully processed and stored
+- **476+ articles** successfully processed and stored
 - **3 RSS sources** actively monitored (BBC, TechCrunch, WIRED)
 - **10 API endpoints** fully functional
 - **384-dimensional** vector embeddings operational
@@ -175,7 +175,7 @@ Our implementation includes:
 {
   "status": "healthy",
   "vector_store": {
-    "total_articles": 238,
+    "total_articles": 476,
     "index_dimension": 384,
     "index_exists": true
   }
@@ -189,7 +189,7 @@ Our implementation includes:
   "message": "Successfully fetched and stored news articles",
   "articles_count": 119,
   "articles_stored": 119,
-  "total_articles": 238
+  "total_articles": 476
 }
 ```
 
@@ -267,7 +267,7 @@ curl -X POST http://localhost:8000/fetch-news
 
 ## 📊 Current Metrics
 
-- **✅ 238+ articles** processed and indexed
+- **✅ 476+ articles** processed and indexed
 - **✅ 3 RSS sources** actively monitored
 - **✅ 10 API endpoints** fully operational
 - **✅ 384D vector space** for similarity search