add lifecycle readme

[ghostloda]

Add readme file

[sealos-ci-robot]

🤖 Generated by lychee action

Summary

Status	Count
🔍 Total	2069
✅ Successful	451
⏳ Timeouts	0
🔀 Redirected	0
👻 Excluded	1616
❓ Unknown	0
🚫 Errors	0

Full action output

Full Github Actions output

[gru-agent]

TestGru Assignment

Summary

Link	CommitId	Status	Reason
Detail	1494c23	🚫 Skipped	No files need to be tested {"lifecycle/README.md":"target file(lifecycle/README.md) not in work scope \n include: service/pkg/** \n exclude: **/*_test.go"}

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[gru-agent]

TestGru Assignment

Summary

Link	CommitId	Status	Reason
Detail	1494c23	🚫 Skipped	No files need to be tested {"lifecycle/README.md":"target file(lifecycle/README.md) not in work scope \n include: pkg/** \n exclude: **/*_test.go"}

Tip

You can @gru-agent and leave your feedback. TestGru will make adjustments based on your input

[gru-agent]

TestGru Assignment

Summary

Link	CommitId	Status	Reason
Detail	1494c23	🚫 Skipped	No files need to be tested {"lifecycle/README.md":"target file(lifecycle/README.md) not in work scope \n include: service/account/** \n exclude: **/*_test.go"}

Tip

You can @gru-agent and leave your feedback. TestGru will make adjustments based on your input

[gru-agent]

TestGru Assignment

Summary

Link	CommitId	Status	Reason
Detail	1494c23	🚫 Skipped	No files need to be tested {"lifecycle/README.md":"target file(lifecycle/README.md) not in work scope \n include: service/launchpad/** \n exclude: **/*_test.go"}

Tip

You can @gru-agent and leave your feedback. TestGru will make adjustments based on your input

[zzjin]

Pls rebase latest main branch to fix ci link error.

[sealos-ci-robot]

📘 Preview documentation website

👀 Visit Preview

[ghostloda]

Pls rebase latest main branch to fix ci link error.

Rebased to fix CI error. Please review. Thanks! @zzjin