https://epiphany.pub/post?refId=2684bc94f9fcb9ffe637ebfbeba2...
Epiphany is a crossover of Jupyter notebook and Medium.com,
Not only can you write text, you can also program on it, to create interactive examples, see:
https://epiphany.pub/post?refId=4c411b8a0b5207739f97e787d2af...
In addition to interactivity, Epiphany implements version control, forking and pull request. You can collaborate with others just like you do on github.
An article will have two timestamps, Create time and last modified time. More than that, you can see the entire revision history.
Source code is in text and syntax highlighted.
It also has the social publishing feature as seen on Medium.
Finally, users own their content. Epiphany has a download button to allow downloading all blog data.
The format used by Epiphany, unlike that of Jupyter, is in plain text and is human readable.
disclaimer: I made Epiphany