Oh I really like Jupyter too. I don't want them to have a bunch of extra overhead or to roll their own blogging engine or anything - though I have experimented with Jupyter notebooks for writing simple technical blogs and it's actually pretty nice.
I have a github-hosted blog (roderick.dev) to which I woefully dedicate too little time. But adding it is as simple as writing markdown and putting a new entry in _posts.
Much <3 to the Jupyter team. Github pages + Jekyll is performant!