Update app.py

app.py

@@ -25,7 +25,7 @@ import accelerate
 llm_model = 'mistralai/Mixtral-8x7B-Instruct-v0.1'
 list_file_obj = '/home/user/app/pdfs/'
 slider_chunk_size = 1024
-chunk_overlap = 128
+slider_chunk_overlap = 128
 temperature = 0.1
 max_tokens = 6000
 top_k = 3