Tests

doc(crud-cluster): add live examples #53

Job	Run time
tests-unit	11m 58s
tests-box-integration (2.11.8-ubuntu20.04)	9m 22s
tests-box-integration (3.0.1-old)	10m 31s
tests-crud-integration (2.11.8-ubuntu20.04)	18m 19s
tests-crud-integration (3.0.1-old)	20m 0s
	1h 10m 10s

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