adding data.json to repo
* remake_cuz_i_fkd_up
*adding four lessons
*topics:
* - echo | /Users/Jesson/.rvm/gems/ruby-2.1.2/bin /Users/Jesson/.rvm/gems/ruby-2.1.2/bin /Users/Jesson/.rvm/rubies/ruby-2.1.2/bin /Users/Jesson/bin /usr/local/bin /usr/bin /bin /usr/sbin /sbin /usr/local/bin /opt/X11/bin /Users/Jesson/.rvm/bin | 0
* - pushd |  pop d