You are correct. The example was supposed to be on the github... but got overlooked and to be honest I've been swamped with work and my masters. :(
About your question.
Lady Ada uses this on her library
//RTC.adjust(DateTime(__DATE__, __TIME__));
I haven't looked at it or how to use it in my code, but there's a good chance that it may work.
I'll try to add the example to the github repository.
By the way, after looking at the library and at the Arduino implementation of time.h... I think (still need to test) that my implementation may be better as it doesn't use strings and it uses the original time.h. But it's mostly about not having much time to do much about it.
Thank you for your suggestions and for testing the library. :)