update travis test, add lighthouse performance tests

Author: bstavroulakis

.travis.yml

@@ -2,4 +2,4 @@ language: node_js
 node_js:
   - "7"
   - "8"
-script: npm run unit --single-run
+script: npm run test --single-run

README.md

@@ -5,6 +5,10 @@
 Live version: [https://www.fullstackweekly.com/](https://www.fullstackweekly.com/)
 
 [![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/singapore/renovate/master/license) [![Build Status](https://travis-ci.org/bstavroulakis/vue-wordpress-pwa.svg?branch=master)](https://travis-ci.org/bstavroulakis/vue-wordpress-pwa) [![David](https://david-dm.org/bstavroulakis/vue-wordpress-pwa.svg)](https://david-dm.org/bstavroulakis/vue-wordpress-pwa)
+[![Lighthouse Accessibility Badge](https://api.fullstackweekly.com/services/lighthouse-score/Lighthouse_Accessibility.svg)](https://www.fullstackweekly.com/category/blog/)
+[![Lighthouse Best Practices Badge](https://api.fullstackweekly.com/services/lighthouse-score/Lighthouse_Best_Practices.svg)](https://www.fullstackweekly.com/category/blog/)
+[![Lighthouse Progressive Web App Badge](https://api.fullstackweekly.com/services/lighthouse-score/Lighthouse_Progressive_Web_App.svg)](https://www.fullstackweekly.com/category/blog/)
+[![Lighthouse Performance Badge](https://api.fullstackweekly.com/services/lighthouse-score/Lighthouse_Performance.svg)](https://www.fullstackweekly.com/category/blog/)
 
 ![alt tag](https://api.fullstackweekly.com/wp-content/uploads/2017/03/vue-wordpress-pwa.png)