update build status url's

Author: broccolini

packages/primer-core/README.md

@@ -1,7 +1,7 @@
 # Primer Core
 
 [![NPM version](http://img.shields.io/npm/v/primer-core.svg)](https://www.npmjs.org/package/primer-core)
-[![Build Status](https://travis-ci.org/primer/primer-core.svg?branch=master)](https://travis-ci.org/primer/primer-core)
+[![Build Status](https://travis-ci.org/primer/primer-css.svg?branch=master)](https://travis-ci.org/primer/primer-css)
 
 > Primer core is the core modules of the primer framework. Shared between our product and marketing pages.
 

packages/primer-marketing/README.md

@@ -1,7 +1,7 @@
 # Primer marketing
 
 [![NPM version](http://img.shields.io/npm/v/primer-marketing.svg)](https://www.npmjs.org/package/primer-marketing)
-[![Build Status](https://travis-ci.org/primer/primer-marketing.svg?branch=master)](https://travis-ci.org/primer/primer-marketing)
+[![Build Status](https://travis-ci.org/primer/primer-css.svg?branch=master)](https://travis-ci.org/primer/primer-css)
 
 > Primer marketing is the marketing based modules of the primer framework.
 

packages/primer-product/README.md

@@ -1,7 +1,7 @@
 # Primer product
 
 [![NPM version](http://img.shields.io/npm/v/primer-product.svg)](https://www.npmjs.org/package/primer-product)
-[![Build Status](https://travis-ci.org/primer/primer-product.svg?branch=master)](https://travis-ci.org/primer/primer-product)
+[![Build Status](https://travis-ci.org/primer/primer-css.svg?branch=master)](https://travis-ci.org/primer/primer-css)
 
 > Primer product is the product based modules of the primer framework. Shared between our product and marketing pages.