docs: facelift of operator list in README.md #7646

Job	Run time
sample_operators_tests (sample-operators/mysql-schema)	4m 11s
sample_operators_tests (sample-operators/tomcat-operator)	4m 15s
sample_operators_tests (sample-operators/operations)	9m 52s
sample_operators_tests (sample-operators/leader-election)	4m 11s
sample_operators_tests (sample-operators/webpage)	4m 6s
sample_operators_tests (sample-operators/kotlin-operator)	3m 57s
	30m 32s

Navigation Menu