Add plausible and script

[acocac]

Summary

The PR aims to test plausible.

List of changes proposed in this PR (pull-request)

• Add plausible via _config.yml

What should a reviewer concentrate their feedback on?

• [ ] Everything looks ok?

Acknowledging contributors

• [X] All contributors to this pull request are already named in the table of contributors in the README file.
• [ ] The following people should be added to the table of contributors in the README file:

[netlify[bot]]

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