Amend Notices for Non-Endorsement

NOTICE

@@ -0,0 +1,19 @@
+This Software was developed under funding from the U.S. Department
+of Energy and the U.S. Government consequently retains certain rights. As
+such, the U.S. Government has been granted for itself and others acting on
+its behalf a paid-up, nonexclusive, irrevocable, worldwide license in the
+Software to reproduce, distribute copies to the public, prepare derivative
+works, and perform publicly and display publicly, and to permit other to do
+so.
+
+Reference herein to any specific commercial product, process, or service
+by trade name, trademark, manufacturer, or otherwise does not necessarily
+constitute or imply its endorsement, recommendation, or favoring by the
+United States Government, The Regents of the University of California, or
+Lawrence Berkeley National Laboratory.
+
+The views and opinions of authors expressed herein do not necessarily
+state or reflect those of the United States Government,
+The Regents of the University of California, or
+Lawrence Berkeley National Laboratory, and shall not be used for advertising
+or product endorsement purposes.

README.md

@@ -240,11 +240,6 @@ If you have questions about your rights to use or distribute this software,
 please contact Berkeley Lab's Intellectual Property Office at
 [email protected].
 
-NOTICE.  This Software was developed under funding from the U.S. Department
-of Energy and the U.S. Government consequently retains certain rights.  As
-such, the U.S. Government has been granted for itself and others acting on
-its behalf a paid-up, nonexclusive, irrevocable, worldwide license in the
-Software to reproduce, distribute copies to the public, prepare derivative
-works, and perform publicly and display publicly, and to permit others to do so.
-
-License for pyamrex can be found at [LICENSE](LICENSE).
+Please see the full license agreement in [LICENSE](LICENSE).  
+Please see the notices in [NOTICE](NOTICE).  
+The SPDX license identifier is `BSD-3-Clause-LBNL`.