Add Rio the Peacock Cow

[amaizyng]

No description provided.

[cla-assistant]

All committers have signed the CLA.

[github-actions]

🧪 PR Validation Results for #43

✅ Check PR is going to correct repo passed!
✅ Check image path passed!
✅ Check image file exists passed!
✅ Check image file size passed!
✅ Check file naming convention passed!
❌ File cows/peacock_cow.json is not properly indented.
✅ Check line endings passed!

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❌ 6/7 passed. Please fix the issues above and update your PR.

[cla-assistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[github-actions]

🧪 PR Validation Results for #43

✅ Check PR is going to correct repo passed!
✅ Check image path passed!
✅ Check image file exists passed!
✅ Check image file size passed!
✅ Check file naming convention passed!
❌ File cows/peacock_cow.json is not properly indented.
✅ Check line endings passed!

---

❌ 6/7 passed. Please fix the issues above and update your PR.

[github-actions]

🧪 PR Validation Results for #43

✅ Check PR is going to correct repo passed!
✅ Check image path passed!
✅ Check image file exists passed!
✅ Check image file size passed!
✅ Check file naming convention passed!
✅ Check proper indentation passed!
✅ Check line endings passed!

---

✅ All tests passed! Nice work on your PR! 🎉

[oohwooh]

What a beautiful cow, thank you for your contribution!