Schema and configuration.md update #1010

Job	Run time
towncrier_check	46s
check_if_release_branch	1s
changed_files	46s
build mirrord CLI	0s
integration_tests	7m 46s
lint	3m 12s
lint_markdown	0s
check-rust-docs	58s
macos_tests	12m 32s
test_agent	3m 27s
test_agent_image	32s
test_cli_image	15s
e2e (docker)	11m 47s
intellij_e2e_on_release_branch	0s
vscode_e2e_on_release_branch	0s
e2e (containerd)	11m 12s
ci	1s
	53m 15s

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