chore/docs: Installing document description should use bbolt

[caicancai]

No description provided.

[k8s-ci-robot]

Hi @caicancai. Thanks for your PR.

I'm waiting for a etcd-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[ahrtr]

Please signoff the commit.

git rebase HEAD~1 --signoff
git push --force-with-lease origin docs

[caicancai]

Please signoff the commit.

git rebase HEAD~1 --signoff
git push --force-with-lease origin docs

@ahrtr thank you very much

[ivanvc]

/ok-to-test

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahrtr, caicancai

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