add a licence

You may not be aware of this, but legally, without a license, no one can use your code.

If you are not sure which licence to use then the MIT licence https://choosealicense.com/licenses/mit/ is very permissive and probably meets the spirit of allowing users to fork and recreate!

http://opensource.stackexchange.com/q/1720/775

https://opensource.stackexchange.com/questions/1720/what-can-i-assume-if-a-publicly-published-project-has-no-license

https://choosealicense.com/no-permission/#for-users