Schema and configuration.md update #1008

Job	Run time
towncrier_check	44s
check_if_release_branch	1s
changed_files	43s
build mirrord CLI	0s
lint	3m 9s
check-rust-docs	4m 9s
test_agent_image	31s
test_agent	3m 19s
test_cli_image	15m 26s
integration_tests	11m 39s
macos_tests	17m 55s
lint_markdown	0s
e2e (docker)	12m 10s
intellij_e2e_on_release_branch	0s
e2e (containerd)	8m 59s
vscode_e2e_on_release_branch	0s
ci	1s
	1h 18m 46s

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