Update README.md

cmaglie · cmaglie · commit e01018b7f68e · 2015-07-06T17:25:39.000+02:00
diff --git a/README.md b/README.md
@@ -51,6 +51,8 @@ Pull Request on github.
 
 ## License and credits
 
+This core has been developed by Arduino LLC in collaboration with Atmel.
+
 ```
   Copyright (c) 2015 Arduino LLC.  All right reserved.
 
