Add "build status" badge after paragraph describing Travis

README.md

@@ -4,6 +4,8 @@ This repository contains the docs for each of the Docker official images. See [d
 
 All Markdown files here are run through [tianon's fork of `markdownfmt`](https://github.com/tianon/markdownfmt) (only forked to add some smaller-diff preference and minor DockerHub-compatibility changes), and verified as formatted correctly via Travis-CI.
 
+[![Build Status](https://travis-ci.org/docker-library/docs.svg?branch=master)](https://travis-ci.org/docker-library/docs)
+
 # How do I add a new image's docs
 
 -	create a folder for my image: `mkdir myimage`