docs at npm update

[brian-lamb-software-engineer]

Overall thanks for the product first :-)

Would it be wise to update the steps here https://www.npmjs.com/package/ng-bs-daterangepicker to ui.bootstrapinstad of ngBootstrap in the modules entry (and make a quick note there "or whatever module your loading bootstrap with")? I am fairly new to angular and getting more used to the whole naming conventions, and way that angular loads modules as a whole, and this set me way back for days, i just discovered that i was loading bootstrap wrong.