pysal/spopt: Release v0.0.3

Changes Version 0.0.3 (2021-01-15) We closed a total of 7 issues (enhancements and bug fixes) through 3 pull requests, since our last release on 2021-01-15. Issues Closed update changelog notebook (#122) fix changelog notebook (#121) bump version to v0.0.2 (#120) bump initial version down to 0.0.1 (#117) Pull Requests update changelog notebook (#122) bump version to v0.0.2 (#120) bump initial version down to 0.0.1 (#117) The following individuals contributed to this release