docs: add community meeting invite link #6238

Job	Run time
sample_operators_tests (sample-operators/leader-election)	3m 25s
sample_operators_tests (sample-operators/mysql-schema)	2m 43s
sample_operators_tests (sample-operators/tomcat-operator)	2m 39s
sample_operators_tests (sample-operators/webpage)	2m 57s
	11m 44s

Provide feedback