chore: add build status

yyx990803 · yyx990803 · commit 8dde0480f1fe · 2018-03-23T16:21:51.000-04:00
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-# vue-loader@next
+# vue-loader@next [![Build Status](https://circleci.com/gh/vuejs/vue-loader/tree/next.svg?style=shield)](https://circleci.com/gh/vuejs/vue-loader/tree/next) [![Windows Build status](https://ci.appveyor.com/api/projects/status/8cdonrkbg6m4k1tm/branch/next?svg=true)](https://ci.appveyor.com/project/yyx990803/vue-loader/branch/next)
 
 This is the WIP branch of the next version of `vue-loader`. It uses a fairly different new architecture that is able to apply whatever rules defined in the main webpack config to the language blocks inside a `*.vue` file.
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# vue-loader@next`
	`1`	`+# vue-loader@next [![Build Status](https://circleci.com/gh/vuejs/vue-loader/tree/next.svg?style=shield)](https://circleci.com/gh/vuejs/vue-loader/tree/next) [![Windows Build status](https://ci.appveyor.com/api/projects/status/8cdonrkbg6m4k1tm/branch/next?svg=true)](https://ci.appveyor.com/project/yyx990803/vue-loader/branch/next)`
`2`	`2`
`3`	`3`	This is the WIP branch of the next version of `vue-loader`. It uses a fairly different new architecture that is able to apply whatever rules defined in the main webpack config to the language blocks inside a `*.vue` file.
`4`	`4`