added clean notebook
added clean notebook


Former-commit-id: 386c9ab051b461f5596eef918785e93c5608cf78
Former-commit-id: 998b5f36311997b8a4d11f40de12ede8426ca467
dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy