doc to train own model

[Ranganaths]

Hi,
Thanks for this paper implementation, can you please add some documentation to train ownmodel, that gonna help ..

thank you

[YuanxunLu]

For training details, please check the paper and issues #3 and #8.
By the way, I've finished the internship, and therefore even I can't train new models now... (because some parts are based on the company's framework and now I can't get access to these., e.g., facial landmarks). Please understand these copyright issues.
Now I'm doing other projects so I have no time to re-write these parts codes using open-source resources.

If you met problems during the training implementation, feel free to comment and I will help you as much as I can.