Update app.py

app.py

@@ -849,7 +849,7 @@ def compare_embeddings(file, query, embedding_models, custom_embedding_model, sp
         "apply_phonetic": apply_phonetic,
         "phonetic_weight": phonetic_weight,
         "use_query_optimization": use_query_optimization,
-        "query_optimization_model": query_optimization_model
+        "query_optimization_model": query_optimization_model,
         "use_reranking": use_reranking
     }