Add macOS Support under supported platforms.

[ppap9264]

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🏷️ Feature Request Type

Other

🔖 Feature description

Add macOS support in the .readme file

✔️ Solution

Add macOS as a valid operating system in the .readme file.

❓ Alternatives

Do nothing.

📝 Additional Context

The documentation could be improved overall, and would help people wondering if macOS is supported