0.13.0

• Tighten the linkage schema v2 specification.
• Update documentation, example and tests to use linkage schema v2.
• Fix mismatch between double hash and blake hash key requirement.
• Update to use newer anonlink-entity-service api supporting multiparty linkage.
• CI now executes tutorial notebooks.
• Updates to dependencies and better test coverage.

https://clkhash.readthedocs.io/en/v0.13.0/