text: Title: Jupyter notebook tutorials: <div> Notebook cells that look nice in Github
  Body: Many of our Jupyter notebooks have special formatted blocks. Cf:
  
  
  ![Image](https://user-images.githubusercontent.com/1390638/187634362-0d228e0f-46a4-4c7c-9b3d-a1a96a99eb30.png)
  https://github.com/cleanlab/cleanlab/blob/master/docs/source/tutorials/image.ipynb
  
  These good in Jupyter and in Colab, but look ugly in Github display of the notebook (eg. the above link) due to the \</div\> tag.
  Would be nice to make these cells simultaneously look good in Github display as well as Jupyter and Colab.
  
  