Add license and disclaimer information

Author: aromanielloNTIA

README.md

@@ -150,8 +150,18 @@ TODO-TEMPLATE: Update references
 - [`TODO-TEMPLATE` C++ API Reference](https://ntia.github.io/TODO-TEMPLATE)
 - TODO-TEMPLATE: Link supporting documentation such as ITU-R Recommendations, NTIA reports, etc.
 
+## License ##
+
+See [LICENSE](./LICENSE.md).
+
+"Python" and the Python logos are trademarks or registered trademarks of the Python Software Foundation, used by the National Telecommunications and Information Administration with permission from the Foundation.
+
 ## Contact ##
 
 For technical questions, contact <[email protected]>.
 
+## Disclaimer ##
+
+Certain commercial equipment, instruments, or materials are identified in this project were used for the convenience of the developers. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the material or equipment identified is necessarily the best available for the purpose.
+
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