Clear up some inconsistent / unclear wording

[MMeent]

IPv6 enabled/disabled working was confusing or contradicting itself. This updates the wording to what is expected, based on the default values in the table above, and the behaviour that I could find in code.

What this PR does / why we need it:

The current documentation is confusing with regards to IPv6 toggles. This fixes that issue.

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[aledbf]

IPv6 enabled/disabled working was confusing or contradicting itself.

Yes, apologies for that. Thank you for the PR

[aledbf]

/ok-to-test

[aledbf]

/lgtm
/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aledbf, MMeent

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  Hits              ?    3723           
  Misses            ?    2298           
  Partials          ?     431

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