Update chatpdf.py

chatpdf.py

@@ -373,14 +373,6 @@ class ChatPDF:
         return scores
 
     def get_reference_results(self, query: str):
-    """
-    Get reference results.
-        1. Similarity model get similar chunks
-        2. Rerank similar chunks
-        3. Expand reference context chunk
-    :param query:
-    :return:
-    """
     reference_results = []
     sim_contents = self.sim_model.most_similar(query, topn=self.similarity_top_k)