Add Info about the Font License.

Author: CakeVR

README.md

@@ -76,3 +76,5 @@ Special thanks: [Arnaud](https://github.com/arnaudvergnet), [AnidemDex](https://
 
 ## License
 This project is licensed under the terms of the [MIT license](https://github.com/dialogic-godot/dialogic/blob/main/LICENSE).
+
+Dialogic may use the [Roboto font](https://fonts.google.com/specimen/Roboto), licensed under [Apache license, Version 2.0](https://github.com/dialogic-godot/dialogic/tree/main/addons/dialogic/Example%20Assets/Fonts/LICENSE.txt).