Update readme

README.md

@@ -32,3 +32,53 @@ Find solutions to a SAT formula in CNF format using WalkSAT.
    cutoff_time  The cutoff benchmarking time in seconds (default = exit on first solution)
 
 ```
+
+## NASA Open Source Agreement and Contributions
+
+See [NOSA](https://github.com/nasa/pysa/tree/main/docs/nasa-cla/).
+
+## Notices
+
+Copyright @ 2023, United States Government, as represented by the Administrator
+of the National Aeronautics and Space Administration. All rights reserved.
+
+## Disclaimer
+
+_No Warranty_: THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF
+ANY KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED
+TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY
+IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
+FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL BE ERROR
+FREE, OR ANY WARRANTY THAT DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE
+SUBJECT SOFTWARE. THIS AGREEMENT DOES NOT, IN ANY MANNER, CONSTITUTE AN
+ENDORSEMENT BY GOVERNMENT AGENCY OR ANY PRIOR RECIPIENT OF ANY RESULTS,
+RESULTING DESIGNS, HARDWARE, SOFTWARE PRODUCTS OR ANY OTHER APPLICATIONS
+RESULTING FROM USE OF THE SUBJECT SOFTWARE.  FURTHER, GOVERNMENT AGENCY
+DISCLAIMS ALL WARRANTIES AND LIABILITIES REGARDING THIRD-PARTY SOFTWARE, IF
+PRESENT IN THE ORIGINAL SOFTWARE, AND DISTRIBUTES IT "AS IS."
+
+_Waiver and Indemnity_:  RECIPIENT AGREES TO WAIVE ANY AND ALL CLAIMS AGAINST
+THE UNITED STATES GOVERNMENT, ITS CONTRACTORS AND SUBCONTRACTORS, AS WELL AS
+ANY PRIOR RECIPIENT.  IF RECIPIENT'S USE OF THE SUBJECT SOFTWARE RESULTS IN ANY
+LIABILITIES, DEMANDS, DAMAGES, EXPENSES OR LOSSES ARISING FROM SUCH USE,
+INCLUDING ANY DAMAGES FROM PRODUCTS BASED ON, OR RESULTING FROM, RECIPIENT'S
+USE OF THE SUBJECT SOFTWARE, RECIPIENT SHALL INDEMNIFY AND HOLD HARMLESS THE
+UNITED STATES GOVERNMENT, ITS CONTRACTORS AND SUBCONTRACTORS, AS WELL AS ANY
+PRIOR RECIPIENT, TO THE EXTENT PERMITTED BY LAW.  RECIPIENT'S SOLE REMEDY FOR
+ANY SUCH MATTER SHALL BE THE IMMEDIATE, UNILATERAL TERMINATION OF THIS
+AGREEMENT.
+
+## Licence
+
+Copyright © 2023, United States Government, as represented by the Administrator
+of the National Aeronautics and Space Administration. All rights reserved.
+
+The PySA, a powerful tool for solving optimization problems is licensed under
+the Apache License, Version 2.0 (the "License"); you may not use this file
+except in compliance with the License. You may obtain a copy of the License at
+http://www.apache.org/licenses/LICENSE-2.0.
+
+Unless required by applicable law or agreed to in writing, software distributed
+under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+CONDITIONS OF ANY KIND, either express or implied. See the License for the
+specific language governing permissions and limitations under the License.