all links, tutorials, examples about programming
- https://jekyllrb.com/docs/
- https://towardsdatascience.com/how-to-create-a-free-github-pages-website-53743d7524e1
- https://onextrapixel.com/start-jekyll-blog-github-pages-free/
- https://medium.com/spemer/free-github-blog-and-hosting-with-jekyll-c24c408d158f
- https://pages.github.com/
- https://help.github.com/en/articles/using-jekyll-as-a-static-site-generator-with-github-pages
- https://www.google.com/search?q=github+free+hosting+jekyll+site&rlz=1C1CHBD_enBE837BE837&oq=github+free+hosting+jekyll+site&aqs=chrome..69i57.10407j0j1&sourceid=chrome&ie=UTF-8