added a badge to npm

Elad Gil · Elad Gil · commit 9b8847634705 · 2018-12-19T14:52:24.000+02:00
diff --git a/README.md b/README.md
@@ -1,3 +1,4 @@
+[![npm version](https://badge.fury.io/js/react-native-background-downloader.svg)](https://badge.fury.io/js/react-native-background-downloader)
 
 # react-native-background-downloader
 

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+[![npm version](https://badge.fury.io/js/react-native-background-downloader.svg)](https://badge.fury.io/js/react-native-background-downloader)`
`1`	`2`
`2`	`3`	`# react-native-background-downloader`
`3`	`4`