[danielki]

As others have said - long as proper attribution is provided in the finished product, it's within the terms of the license that you put up. In the future:

* If you don't want your code available to the public, use a private repository - either Github's paid plans or Bitbucket (free private repos) or something similar.

* If you want your code publicly available, but not to be used in this way, use a different license - GPL/LGPL, CC BY-NC-SA, etc. Research to figure out which one works best.