docs: Add listener-operator where missing #4

Job	Run time
General Pull Request Checks / Run Cargo Deny (advisories)	53s
General Pull Request Checks / Run RustDoc	2m 55s
General Pull Request Checks / Run Rustfmt	16s
General Pull Request Checks / Run Clippy	3m 3s
General Pull Request Checks / Run Cargo Deny (bans licenses sources)	53s
General Pull Request Checks / Run Cargo Tests	2m 39s
Reviewdog Pull Request Checks / actionlint	18s
General Pull Request Checks / Run Cargo Udeps	12m 13s
Reviewdog Pull Request Checks / eslint	36s
Reviewdog Pull Request Checks / flake8	22s
Reviewdog Pull Request Checks / markdownlint	14s
Reviewdog Pull Request Checks / shellcheck	5s
Reviewdog Pull Request Checks / yamllint	20s
General Pull Request Checks / All tests passed	1s
	24m 48s

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