ehnance jekyll features

#### case:

let's enhance jekyll features

#### sources:

- [Build A Blog With Jekyll And GitHub Pages](https://www.smashingmagazine.com/2014/08/build-blog-jekyll-github-pages/)
- [Using Jekyll and GitHub Pages for Our Site
](https://developmentseed.org/blog/2011-09-09-using-jekyll-and-github-pages-for-our-site)