Update app.py

app.py

@@ -74,7 +74,7 @@ def do_ask(question, button, openapi, dataset, length, do_marg, k, max_sources,
     else:
         yield "", "", "", docs, [[0, 0]]
     #progress(0, "Building Index...")
-    docs._build_faiss_index()
+    docs._build_texts_index()
     #progress(0.25, "Querying...")
     for i, result in enumerate(docs.query_gen(question,
                                               length_prompt=f'use {length:d} words',