api usage examples missing

[kusha-b-k]

under section Events->Touch api usage example are missing for touchX ,touchY, ptouchX, ptouchY, touches[]

[limzykenneth]

@kusha-b-k Some of the docs are missing examples and we'll try to get to all of them eventually. However, if you have the time to add examples to those docs that will be awesome! Here are some instructions if you are interested in contributing to the examples. Cheers.