minor: Add some comments #44

Job	Run time
Downloads	14s
Create release	7s
Build rtlsdr on ubuntu-20.04 for amd64	44s
Build soapysdr on ubuntu-20.04 for amd64	47s
Build with Mingw-w64 on i686	3m 53s
Build rtlsdr on ubuntu-20.04 for armhf	1m 42s
Build on ${{ matrix.distro }} ${{ matrix.arch }}	0s
Build rtlsdr on ubuntu-22.04 for amd64	35s
Build soapysdr on ubuntu-20.04 for armhf	1m 49s
Build with Mingw-w64 on x86-64	4m 24s
Build soapysdr on ubuntu-22.04 for amd64	2m 14s
Build rtlsdr on ubuntu-20.04 for arm64	1m 29s
Build rtlsdr on macos-12 for x86_64	1m 9s
Build soapysdr on macos-12 for x86_64	1m 2s
Build soapysdr on ubuntu-20.04 for arm64	1m 38s
Build rtlsdr on macos-14 for arm64	29s
Build rtlsdr on ubuntu-22.04 for armhf	1m 23s
Build soapysdr on macos-14 for arm64	31s
Build soapysdr on ubuntu-22.04 for armhf	1m 27s
Build rtlsdr on ubuntu-22.04 for arm64	1m 7s
Build soapysdr on ubuntu-22.04 for arm64	1m 24s
Visual Studio 16 2019 x64 CMake (MSBuild) on windows-2019	4m 16s
Visual Studio 16 2019 Win32 CMake (MSBuild) on windows-2019	57s
Visual Studio 17 2022 x64 CMake (MSBuild) on windows-2022	4m 59s
Visual Studio 17 2022 Win32 CMake (MSBuild) on windows-2022	1m 15s
	39m 35s

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