docs: Update examples to use general landmarks instead of personal addresses

Author: siner308

README.md

@@ -156,7 +156,7 @@ supabase start
 # Test geocoding
 curl -X POST http://localhost:54321/functions/v1/geocoding \
   -H "Content-Type: application/json" \
-  -d '{"query": "둔촌동 프라자아파트"}'
+  -d '{"query": "홍대입구역"}'
 ```
 
 ### Production Testing