Update app.py

app.py

@@ -97,7 +97,9 @@ class ChatDocumentQA:
         Returns:
             FAISS: Vector store created from the text chunks.
         """
-        embeddings = OpenAIEmbeddings()
+        embeddings = AzureOpenAIEmbeddings(
+                        azure_deployment="openai_embedding",
+                    )
 
         return FAISS.from_documents(documents=text_chunks, embedding=embeddings)