fix: workflow documentation

[k15r]

Description

Changes proposed in this pull request:

• sequential workflows should be ordered lists

Related issue(s)

[github-actions]

Add one of following labels

- kind/feature -> Use it when you want to submit a new feature

- kind/enhancement -> Use it when you modify or improve an existing feature

- kind/bug -> Use it when you fix a bug

[kyma-bot]

@k15r: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-keb-archiver-job-build	97da8a1	link	true	/test pull-keb-archiver-job-build
pull-keb-expirator-build	97da8a1	link	true	/test pull-keb-expirator-build

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