This giveaway offer has expired. Github Tutorial Pro is now available on the regular basis.
This application has free version too but with the less topics.
Features of Github tutorial pro:
1.Basic section where all the basics of github is presented.
4.You can take test in the "Random test"
6.Eight new topics.
If you have any suggestions/queries then you can send me a mail ( email@example.com )
4.0 and up