Just check the posts folder and submit your tutorials there.
Clone this repo and run docker-compose up from the root directory of the repo. Browse the site by visiting http://localhost:4000
Alternately, clone the repo and run the following docker container: docker run --rm --label=jekyll --volume=$(pwd):/srv/jekyll -it -p 4000:4000 jekyll/jekyll:3.2 jekyll serve
Browse the site by visiting http://localhost:4000