MAGETWO-66741: Good practice, license in readme file #6910

 - Merge Pull Request #6910 from rafaelstz/magento2:patch-12

Author: vrann

README.md

@@ -33,3 +33,7 @@ To report security vulnerabilities in Magento software or web sites, please e-ma
 
 Stay up-to-date on the latest vulnerabilities and patches for Magento by signing up for <a href="https://magento.com/security/sign-up">Security Alert Notifications</a>.
 
+<h2>License</h2>
+
+OSL 3.0 (c) [Magento Inc.](https://github.com/magento/)
+