added form helpers docs
Merge remote-tracking branch 'origin/master'

* origin/master:
  Update README.md
  Solved 2 glitches inputs "side bar": - Wrong id in DateTimePicker section - Strangely enough, there was a "jump" while scrolling in "affixed" side bar. Timepicker section was not reachable. I don't really know what's exactly happening. Seems to be a conflict while resolving the id. Changing "timepicker" to "t1mepicker" solves it. Any c