Update app.py

app.py

@@ -123,7 +123,7 @@ else:
     text_nodes = []
 
 # Setup index and LLM
-embed_model = HuggingFaceEmbedding(model="neuml/pubmedbert-base-embeddings")
+embed_model = HuggingFaceEmbedding(model_name="neuml/pubmedbert-base-embeddings")
 llm = OpenAI(model="gpt-4o-mini-2024-07-18", temperature=0.1)
 Settings.llm = llm
 Settings.embed_model = embed_model