proper SPDX license code
@@ -48,7 +48,7 @@ test:
about:
home: https://github.com/PSLmodels/Tax-Calculator
- license: CC
+ license: CC-BY-1.0
license_family: CC
license_file: docs/about/license.md
summary: 'open-source microsimulation model for static analysis of USA federal income and payroll taxes.'
