JEP: official support for Markdown-based notebooks
Summary
This JEP proposes an alternative Markdown-based serialization syntax for Jupyter notebooks, with file extension .nb.md, to be adopted as an official standard by the Jupyter community, and describes steps to make it supported by most tools in the ecosystem.
It is meant as one of several steps towards offering flexibility in how to represent notebooks to simultaneously:
support an extensive range of use cases with various balances of priority between conciseness and readability and lossless conversion to and from .ipynb files;
foster standardization by being opinionated on some of the low-level choices.