README.md add AppVeyor CI & Travis CI details

Author: Christopher J. Brody

README.md

@@ -24,6 +24,11 @@ description: Open an in-app browser window.
 |AppVeyor|Travis CI|
 |:-:|:-:|
 |[![Build status](https://ci.appveyor.com/api/projects/status/github/apache/cordova-plugin-inappbrowser?branch=master)](https://ci.appveyor.com/project/ApacheSoftwareFoundation/cordova-plugin-inappbrowser)|[![Build Status](https://travis-ci.org/apache/cordova-plugin-inappbrowser.svg?branch=master)](https://travis-ci.org/apache/cordova-plugin-inappbrowser)|
+|npm install|npm install|
+|eslint|eslint|
+||browser (chrome, firefox, edge)|
+||iOS (9.3) on Xcode 7.3|
+||Android (4.4, 6.0)|
 
 # cordova-plugin-inappbrowser