Update README.md

README.md

@@ -2,6 +2,7 @@
 Welcome to the mirror app for android. A simple mirror using your front camera.
 Currently This is a pre-release application, so it means it will have some rough edges and feature missing, but you are welcome to open a issue to tell about your needs :wave:.
 ## Features
- * Just a mirrror, no ads, no background tracking (just see the source code if you don't trust me)
+ * Just a mirrror, no ads, no background tracking (just see the source code if you don't trust me);
+ * free to use/modify, with GNU GPL covered.
 ## License
-This app is license under GNU General Public License, either version 2, or any later version. see LICENSE for more detail.
+This app is free software: You have the rights to re-distribute it and/or modify it under the terms of GNU General Public License (as published by the Free software foundation; either version 2, or any later version. See LICENSE for more detail.