Add npm badges 17 (#20)

* 📚 added npm badges to readme

* now referencing my repo

* revert part of the change

* switched one download image to version

* removed downloads badge

README.md

@@ -3,8 +3,7 @@
 A calendar module that focuses on providing the data needed to construct a calendar without
 being constrained to specific styles and layouts.
 
-[![MIT License][license_image]][license_url] [![Coverage Status][coverage_image]][coverage_url]
-
+[![MIT License][license_image]][license_url] [![Coverage Status][coverage_image]][coverage_url] [![NPM version][npm_version_image]][npm_url]
 ---
 
 Over the span of a year and a half, three separate projects I was on needed a calendar. Each time I
@@ -1044,3 +1043,6 @@ the [many][demo_style_weeks], [demos][demo_style_months] and inspect the DOM!
 [coverage_url]: https://coveralls.io/github/benjamincharity/angular-json-calendar
 [license_image]: http://img.shields.io/badge/license-MIT-blue.svg
 [license_url]: LICENSE
+[npm_url]: https://npmjs.org/package/moment
+[npm_version_image]: http://img.shields.io/npm/v/angular-json-calendar.svg
+