doc(README): add travis badge

hourliert · hourliert · commit 106c0350135c · 2017-07-19T13:52:20.000+01:00
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-# graphql_client
+# graphql_client [![Build Status](https://travis-ci.org/hourliert/graphql_client.svg?branch=master)](https://travis-ci.org/hourliert/graphql_client)
 
 GraphQL Client written in Dart 🎯.
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# graphql_client`
	`1`	`+# graphql_client [![Build Status](https://travis-ci.org/hourliert/graphql_client.svg?branch=master)](https://travis-ci.org/hourliert/graphql_client)`
`2`	`2`
`3`	`3`	`GraphQL Client written in Dart 🎯.`
`4`	`4`