Update version badge to v2.2

Author: thedevsaddam

README.md

@@ -1,7 +1,7 @@
 ![gojsonq-logo](gojsonq.png)
 
 [![Build Status](https://travis-ci.org/thedevsaddam/gojsonq.svg?branch=master)](https://travis-ci.org/thedevsaddam/gojsonq)
-[![Project status](https://img.shields.io/badge/version-v2.0-green.svg)](https://github.com/thedevsaddam/gojsonq/releases)
+[![Project status](https://img.shields.io/badge/version-v2.2-green.svg)](https://github.com/thedevsaddam/gojsonq/releases)
 [![Go Report Card](https://goreportcard.com/badge/github.com/thedevsaddam/gojsonq)](https://goreportcard.com/report/github.com/thedevsaddam/gojsonq)
 [![Coverage Status](https://coveralls.io/repos/github/thedevsaddam/gojsonq/badge.svg?branch=master)](https://coveralls.io/github/thedevsaddam/gojsonq?branch=master)
 [![GoDoc](https://godoc.org/github.com/thedevsaddam/gojsonq?status.svg)](https://godoc.org/github.com/thedevsaddam/gojsonq)