Add in the doc which module should be injected in the angular module dependencies when using it without webpack

[yoannpicquenot]

Hello !

I am using angular-material-time-picker which is cool by the way. I am not using webpack so I had to take a look at the code to see what was the name of the module I had to inject.
It should be interesting to write in the doc for those like me who have constraint and cannot use webpack :)

angular.module("app", [ "md.time.picker" ])