Updated text for license with branding restrictions

Author: TSI-ashishsharma

COPYING

@@ -1,3 +1,10 @@
+Although the code for this Magentacloud custom web theme for Nextcloud is free and available under the GPL 3 license below, Deutsche Telekom (including T-Systems)  fully reserves all rights to the Telekom brand. To prevent users from getting confused about
+the source of a digital product or experience, there are stringent restrictions on using the Telekom brand and design,
+even when built into code that we provide. For any customization other than explicitly for Telekom or T-Systems, you must
+replace the Deutsche Telekom and T-Systems brand elements contained in the provided sources.
+
+
+
                     GNU AFFERO GENERAL PUBLIC LICENSE
                        Version 3, 19 November 2007