Update app.py

app.py

@@ -20,7 +20,8 @@ def preprocess_for_bm25(text):
     text = text.replace("...", " _ELLIPSIS_ ")  
 
     # Add space before and after punctuation (except "_ELLIPSIS_")
-    text = re.sub(r'([.,!?()"])', r' \1 ', text)
+    text = re.sub(r'([.,!?()"\'])', r' \1 ', text)
+
 
     # Restore "..." from the placeholder
     text = text.replace("_ELLIPSIS_", "...")  
@@ -92,7 +93,7 @@ llm = HuggingFaceHub(
     #repo_id="google-bert/bert-base-uncased",
     model_kwargs={
         "temperature": 0.1,
-        "max_length": 1,
+        "max_length": 5,
         "return_full_text": False
     }
 )