Docs: update introduction (#4207) #37

Job	Run time
image-build (user, user)	3m 15s
image-build (terminal, terminal)	3m 14s
image-build (account, account)	3m 16s
image-build (app, app)	3m 15s
image-build (db-bytebase, db/bytebase)	3m 17s
image-build (db-adminer, db/adminer)	3m 1s
image-build (license, license)	3m 10s
resolve-modules	7s
image-build (job-init, job/init)	3m 12s
image-build (resources, resources)	3m 16s
image-build (resources-metering, resources/metering)	3m 14s
image-build (node, node)	3m 18s
image-build (admission, admission)	3m 7s
save-sealos / save-sealos	27s
golangci-lint (./controllers/pkg)	1m 5s
golangci-lint (./controllers/license)	1m 0s
golangci-lint (./controllers/job/init)	49s
golangci-lint (./controllers/terminal)	45s
golangci-lint (./controllers/admission)	42s
golangci-lint (./controllers/app)	1m 7s
golangci-lint (./controllers/db/bytebase)	58s
golangci-lint (./controllers/db/adminer)	1m 11s
golangci-lint (./controllers/account)	55s
golangci-lint (./controllers/node)	52s
golangci-lint (./controllers/resources)	1m 13s
golangci-lint (./controllers/user)	59s
build-cluster-image	0s
	50m 45s

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