Added docs #824

Job	Run time
towncrier_check	46s
check_if_release_branch	1s
changed_files	43s
build mirrord CLI	0s
test_agent_image	6m 7s
lint	3m 19s
integration_tests	12m 50s
check-rust-docs	4m 18s
test_agent	3m 19s
lint_markdown	0s
test_cli_image	15m 30s
macos_tests	21m 4s
e2e (docker)	11m 1s
vscode_e2e_on_release_branch	0s
intellij_e2e_on_release_branch	0s
e2e (containerd)	10m 20s
ci	1s
	1h 29m 19s

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