Update app.py

app.py

@@ -18,7 +18,7 @@ with open("essay_writing.txt", "r", encoding="utf-8") as file:
 # split the text into chunks 
 cleaned_text = essay_writing.strip()
 chunks = cleaned_text.split("\n")
-cleaned_chunks = [chunk.strip() for chunk in chunks if stripped_chunk]
+cleaned_chunks = [chunk.strip() for chunk in chunks if chunk.strip()]
 
 # load an embedding model 
 model = SentenceTransformer('all-MiniLM-L6-v2')