chore: update readme

Signed-off-by: Ar Rakin <rakinar2@onesoftnet.eu.org>

README.md

@@ -7,4 +7,12 @@ Copyright (C) [Ar Rakin](https://github.com/virtual-designer) 2024.
 
 The current version of this dashboard is located at: https://www.sudobot.online
 
-Old version of the site is located at: https://sudobot-dashboard-6c7506h5v-osn.vercel.app/
+Old version of the site is located at: https://sudobot-dashboard-6c7506h5v-osn.vercel.app/
+
+### Licensing
+
+The project is licensed under the GNU Affero General Public License v3.0 or later.
+If you host a modified version of this project, you must provide the source code of the modified
+version publicly according to this license, and preserve the above copyright notice in the pages,
+and source code comments.
+You may add your own copyright *alongside* with these notices.