Remove underlines between badges

[novialriptide]

What does this PR do?

Removes the underlines between the badges.

Here's before:

After:

Fixes # (issue)

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you read the contributor guideline?
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• Was this discussed/approved via a GitHub issue or the forum? Please add a link to it if that's the case.
• Did you make sure to update the documentation with your changes? Here are the
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• Did you write any new necessary tests?

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[stevhliu]

Very nice attention to detail, thanks!