Try This out
make a folder
mkdir jekyll
move into the folder
cd jekyll
clone my example
git clone git@github.com:jayCorp/jaycorp.github.io.git
cd jaycorp.github.io
install dependencies
bundle install
add new post
bundle exec jekyll post 'a new post for the blog'
edit post
_posts/2016-12-27-try-this-out.md
Edit in wysiyg editor http://prose.io/#jayCorp/jaycorp.github.io/edit/master/_posts/2016-12-27-try-this-out.md
run locally
bundle exec jekyll serve
commit changes and update site
git add .
git commit -am 'update'
git push origin master