Mention requirements

Author: Phil Sturgeon

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [0.6.0] - 2018-05-04
 ## Removed
 - Removed switch `--watch` as it didn't actually work, and was flagging "security issues" on npm ([#46])
 ## Added

README.md

@@ -8,6 +8,10 @@ Make sure your OpenAPI 3.0 specifications are more than just valid, make sure th
 
 Taking off from where [Mike Ralphson] started with linting in [swagger2openapi], Speccy aims to become the [rubocop] or [eslint] of OpenAPI.
 
+## Requirements
+
+- **NodeJS:** v8 - v10
+
 ## OpenAPI Specification
 
 Currently tracking [v3.0.0](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md)

package-lock.json

@@ -1,6 +1,6 @@
 {
     "name": "speccy",
-    "version": "0.6.0-5",
+    "version": "0.6.0",
     "description": "Your friendly OpenAPI v3.0 #WellActually CLI assistant.",
     "bin": {
         "speccy": "./speccy.js"