docs: fix npms.io badge url

Author: icebob

README.md

@@ -4,7 +4,7 @@ A schema-based form generator component for Vue.js v1.x.x
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/912039aa815e40de8315032519aa7e6c)](https://www.codacy.com/app/mereg-norbert/vue-form-generator?utm_source=github.com&utm_medium=referral&utm_content=icebob/vue-form-generator&utm_campaign=Badge_Grade)
 [![Build Status](https://travis-ci.org/icebob/vue-form-generator.svg?branch=master)](https://travis-ci.org/icebob/vue-form-generator)
 [![Coverage Status](https://coveralls.io/repos/github/icebob/vue-form-generator/badge.svg?branch=master)](https://coveralls.io/github/icebob/vue-form-generator?branch=master)
-[![NPMS.io score](https://badges.npms.io/cross-spawn.svg)]()
+[![NPMS.io score](https://badges.npms.io/vue-form-generator.svg)]()
 [![Package Quality](http://npm.packagequality.com/shield/vue-form-generator.svg)](http://packagequality.com/#?package=vue-form-generator)
 
 [![Dependency Status](https://david-dm.org/icebob/vue-form-generator.svg)](https://david-dm.org/icebob/vue-form-generator)