update travis config

.travis.yml

@@ -1,5 +1,7 @@
 sudo:          false
 language:      node_js
+node_js:
+  - "node"
 install:       npm install
 script:
   - npm test

README.md

@@ -3,6 +3,7 @@
 [Agency](https://startbootstrap.com/template-overviews/agency/) is a one page agency portfolio theme for [Bootstrap](http://getbootstrap.com/) created by [Start Bootstrap](http://startbootstrap.com/). This theme features several content sections, a responsive portfolio grid with hover effects, full page portfolio item modals, a responsive timeline, and a working PHP contact form.
 
 ## Preview
+
 [![Agency Preview](https://startbootstrap.com/assets/img/templates/agency.jpg)](https://blackrockdigital.github.io/startbootstrap-agency/)
 
 **[View Live Preview](https://blackrockdigital.github.io/startbootstrap-agency/)**