Update app.py

app.py

@@ -19,9 +19,9 @@ app = App.from_config(config={
         },
     },
     "embedder": {
-        "provider": "google",
+        "provider": "huggingface",
         "config": {
-            "model": "models/embedding-001",
+            "model": "hkunlp/instructor-large",
         },
     },
         "chunker": {