The tutorials have been moved to sparkjava.com, and are now part of the https://github.com/perwendel/perwendel.github.io/ repo.
This repo contains the source code for the Spark Tutorial webpage, located at https://sparktutorials.github.io
If you have something to share, small or big, please creat a pull request.
https://help.github.com/articles/using-jekyll-with-pages/