removed section text + improved to 40 top k

index_retriever.py

@@ -16,18 +16,18 @@ def create_query_engine(vector_index):
     try:
         bm25_retriever = BM25Retriever.from_defaults(
             docstore=vector_index.docstore, 
-            similarity_top_k=25
+            similarity_top_k=15
         )
         
         vector_retriever = VectorIndexRetriever(
             index=vector_index, 
-            similarity_top_k=30,
+            similarity_top_k=25,
             similarity_cutoff=0.5
         )
         
         hybrid_retriever = QueryFusionRetriever(
             [vector_retriever, bm25_retriever],
-            similarity_top_k=30,
+            similarity_top_k=40,
             num_queries=1
         )