refine UI for sources

app.py

@@ -117,7 +117,8 @@ def qa(chatbot):
         titles = []
         for doc in ret["source_documents"]:
             url = f"{doc.metadata['url']}#page={doc.metadata['page'] + 1}"
-            title = url.split("/")[-1]
+            file_name = doc.metadata["source"].split("/")[-1]
+            title = f"{file_name} Page: {doc.metadata['page']}"
             if title not in titles:
                 titles.append(title)
                 chatbot[-1][1] += f"1. [{title}]({url})\n"