License update for README (#108)

(cherry picked from commit db27354)

Author: urrsk

README.md

@@ -20,10 +20,10 @@ repository](https://github.com/UniversalRobots/Universal_Robots_ROS2_Driver/tree
 not clone this repository into a Foxy workspace.
 
 ## License
-The majority of this repository is licensed under the BSD-3-Clause license. However, the **UR20
-meshes** are licensed under Universal Robots A/S’ Terms and Conditions for Use of Graphical Documentation. See the separate
-[LICENSE.txt](/meshes/ur20/LICENSE.txt) file for details. If you have any questions regarding the
-license or the license doesn't fit you use-case, please contact [[email protected]](mailto:[email protected]).
+The [UR20 meshes](ur_description/meshes/ur20) constitutes “Graphical Documentation” the use of which is subject to and governed by our “[Terms and Conditions for use of Graphical Documentation](https://www.universal-robots.com/legal/terms-and-conditions/terms_and_conditions_for_use_of_graphical_documentation.txt)”.\
+If you have any questions regarding the license or the license doesn't fit you use-case, please contact [[email protected]](mailto:[email protected]).
+
+All other content is licensed under the BSD-3-Clause license
 
 ## Structure of the repository