Fix macOS casing in README

Signed-off-by: Nicolas 'Pixel' Noble <nicolas@nobis-crew.org>

Author: nicolasnoble

README.md

@@ -6,7 +6,7 @@
 |--------|------------|--------|
 |Windows x64 build|[![Windows x64 CI](https://dev.azure.com/grumpycoders/pcsx-redux/_apis/build/status/grumpycoders.pcsx-redux?branchName=main)](https://dev.azure.com/grumpycoders/pcsx-redux/_build/latest?definitionId=1&branchName=main)|[Windows Intel 64-bits](https://distrib.app/pub/org/pcsx-redux/project/dev-win-x64)|
 |Linux x64 build|[![Linux x64 CI](https://github.com/grumpycoders/pcsx-redux/workflows/Linux%20CI/badge.svg?branch=main)](https://github.com/grumpycoders/pcsx-redux/actions?query=workflow%3A%22Linux+CI%22+branch%3Amain)|[Linux Intel 64-bits (AppImage)](https://distrib.app/pub/org/pcsx-redux/project/dev-linux-x64)|
-|MacOS build|[![MacOS CI](https://github.com/grumpycoders/pcsx-redux/workflows/macOS%20CI/badge.svg?branch=main)](https://github.com/grumpycoders/pcsx-redux/actions?query=workflow%3A%22macOS+CI%22+branch%3Amain)|[MacOS Arm](https://distrib.app/pub/org/pcsx-redux/project/dev-macos-arm)|
+|macOS build|[![macOS CI](https://github.com/grumpycoders/pcsx-redux/workflows/macOS%20CI/badge.svg?branch=main)](https://github.com/grumpycoders/pcsx-redux/actions?query=workflow%3A%22macOS+CI%22+branch%3Amain)|[macOS Arm](https://distrib.app/pub/org/pcsx-redux/project/dev-macos-arm)|
 
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