add Readme content
Merge commit '1ebc8969a601cb80003a60aba11e724e8157e763'

* commit '1ebc8969a601cb80003a60aba11e724e8157e763':
  Update README.md
  Update README.md
Merge branch 'master' of https://github.com/Jakevin/JKCalendar

# By Jakevin Lo
# Via Jakevin Lo
* 'master' of https://github.com/Jakevin/JKCalendar:
  Update README.md