added license badge

Stefania · Stefania · commit 2dd8b1c24719 · 2019-06-17T09:08:48.000+02:00
diff --git a/README.md b/README.md
@@ -1,3 +1,4 @@
+[![License: GPL v2](https://img.shields.io/badge/License-GPL%20v2-blue.svg)](https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html)
 
 arduino-create-agent
 ====================

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+[![License: GPL v2](https://img.shields.io/badge/License-GPL%20v2-blue.svg)](https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html)`
`1`	`2`
`2`	`3`	`arduino-create-agent`
`3`	`4`	`====================`