chore(main): release 0.8.1

[github-actions[bot]]

:robot: I have created a release beep boop

0.8.1 (2024-04-07)

Bug Fixes

• allow spaces between equal sign and value (f604f81), closes #25

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[github-actions[bot]]

:robot: Release is at https://github.com/izyuumi/html2md-rs/releases/tag/v0.8.1 :sunflower: