README.md: fix capitalization

[FliegendeWurst]

No description provided.

[deepin-ci-robot]

Hi @FliegendeWurst. Thanks for your PR. 😃

[github-actions]

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[deepin-ci-robot]

Hi @FliegendeWurst. Thanks for your PR.

I'm waiting for a linuxdeepin 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.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: BLumia, FliegendeWurst

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Needs approval from an approver in each of these files:

• debian/deepin/OWNERS

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[deepin-bot]

TAG Bot

New tag: 1.5.2
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #11

[deepin-bot]

TAG Bot

New tag: 1.5.3
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #13

[BLumia]

Small typo fix, could ignore CLA check.