docs(readme): remove microsoft store reference #99

Job	Run time
Test documentation build	49s
Lint & Test (macos-12)	2m 47s
Test Briefcase build (macos-12)	3m 9s
Lint & Test (windows-2022)	3m 29s
CodeQL (javascript)	1m 19s
Test Briefcase build (windows-2022)	5m 12s
Lint & Test (ubuntu-22.04)	1m 32s
CodeQL (python)	2m 15s
Test Python package build (macos-12)	54s
Test Briefcase build (ubuntu-22.04)	3m 20s
Test Python package build (windows-2022)	49s
Test Python package build (ubuntu-22.04)	17s
Upload coverage	2s
Deploy github pages	0s
Briefcase build & draft release	0s
Publish to PyPi	0s
	25m 54s

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