This PR fixes two broken links in the documentation.

References

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Submitter checklist

• The PR request is well described and justified, including the body and the references
• [?] The PR title represents the desired changelog entry
• [-] The repository's code style is followed (see the contributing guide)
• [-] Test coverage that demonstrates that the change works as expected
• [-] For new features, there's necessary documentation in this pull request or in a subsequent PR to wiremock.org