Merge pull request #133 from archlinux/fix/travis-badge

readme: replace build status badge with new travis-ci.com

README.md

 # Archweb README
 
-[![Build Status](https://travis-ci.org/archlinux/archweb.svg?branch=master)](https://travis-ci.org/archlinux/archweb)
+[![Build Status](https://travis-ci.com/archlinux/archweb.svg?branch=master)](https://travis-ci.com/archlinux/archweb)
 [![Coverage Status](https://coveralls.io/repos/github/archlinux/archweb/badge.svg?branch=master)](https://coveralls.io/github/archlinux/archweb?branch=master)
 
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