Update app.py

app.py

@@ -23,5 +23,5 @@ def generate_pdf():
     return send_file(pdf_filename, as_attachment=True)
 
 if __name__ == "__main__":
-    app.run(debug=True, "0.0.0.0", port=7860)
+    app.run(debug=True, host="0.0.0.0", port=7860)