Optionally move to hugo relearn theme after gaining experience with jekyll premier

[epogrebnyak]

We currently use as a starter theme: https://pages-themes.github.io/primer/

After there is some content we can move to target theme: https://github.com/McShelby/hugo-theme-relearn

[epogrebnyak]

Checkpoint:

• new content about CMF Team is added to this repo

[epogrebnyak]

From relearn author: https://russfeld.me/talks/haveabyte2019/slides.pdf