Update app.py

app.py

@@ -27,7 +27,7 @@ HF_TOKEN = os.getenv('HF_Token')
 def create_vector_db():
 
     loader = DirectoryLoader(DATA_PATH, glob='*.md', loader_cls=TextLoader, show_progress=True)
-    documents =loader.load()
+    document =loader.load()
     
     # split the document into chunks
     text_splitter = RecursiveCharacterTextSplitter(chunk_size=256, chunk_overlap=50)