Update app.py

app.py

@@ -32,7 +32,7 @@ def get_text_file(txt_docs):
     temp_dir = tempfile.TemporaryDirectory()
     temp_filepath = os.path.join(temp_dir.name, txt_docs.name)
     with open(temp_filepath, "wb") as f:
-        f.write(pdf_docs.getvalue())
+        f.write(txt_docs.getvalue())
     txt_loader = TextLoader(temp_filepath)
     txt_doc = tex_loader.load()
     return tex_doc