handled punkt error1

app.py

@@ -18,7 +18,7 @@ import gradio as gr
 import pandas as pd
 import json
 
-# Download required nltk resources
+# Download required NLTK resources
 nltk.download('punkt')
 
 # Load spaCy English model
@@ -86,7 +86,7 @@ def load_documents(file_paths):
             logger.error(f"Error processing file {file_path}: {e}")
     return docs
 
-# Function to ensure the response ends with complete sentences using nltk
+# Function to ensure the response ends with complete sentences using NLTK
 def ensure_complete_sentences(text):
     sentences = sent_tokenize(text)
     if sentences: