fixing npm badge

Author: sergeyt

README.markdown

@@ -1,6 +1,6 @@
 #jQuery xml2json [![Build Status][buildstatus]][buildstatusurl] [![Deps Status][depstatus]][depstatusurl]
 
-[![NPM][npm]](https://nodei.co/npm/jQuery-xml2json/)
+[![NPM][npm]](https://nodei.co/npm/jquery-xml2json/)
 
 A simple jQuery plugin that converts XML data, typically from $.ajax requests, to a valid JSON object.
 
@@ -18,4 +18,4 @@ Here's a simple usage example:
 [buildstatusurl]: https://drone.io/github.com/sergeyt/jQuery-xml2json/latest
 [depstatus]: https://david-dm.org/sergeyt/jQuery-xml2json.png
 [depstatusurl]: https://david-dm.org/sergeyt/jQuery-xml2json
-[npm]: https://nodei.co/npm/jQuery-xml2json.png?downloads=true&stars=true
+[npm]: https://nodei.co/npm/jquery-xml2json.png?downloads=true&stars=true