Update docker readme to also build with GUI #582

Job	Run time
Build on linux systems (ubuntu-22.04, 11.7, 86, 3.11)	12m 43s
Build on Windows (windows-2019, Visual Studio 16 2019, 11.5.1, 86, 3.11, RTX-3000-and-4000)	28m 52s
Build on linux systems (ubuntu-22.04, 11.7, 75, 3.10)	12m 58s
Build on Windows (windows-2019, Visual Studio 16 2019, 11.5.1, 75, 3.10, RTX-2000)	26m 52s
Build on linux systems (ubuntu-22.04, 11.7, 70, 3.9)	15m 50s
Build on Windows (windows-2019, Visual Studio 16 2019, 11.5.1, 70, 3.9)	24m 13s
Build on linux systems (ubuntu-22.04, 11.7, 61, 3.8)	10m 46s
Build on Windows (windows-2019, Visual Studio 16 2019, 11.5.1, 61, 3.8, GTX-1000)	21m 0s
Build on linux systems (ubuntu-22.04, 11.7, 53, 3.7)	13m 59s
Build on Windows (windows-2019, Visual Studio 16 2019, 11.5.1, 53, 3.7, -DNGP_BUILD_WITH_GUI=OFF ...	21m 50s
Build on Windows (windows-2019, Visual Studio 16 2019, 11.5.1, 37, 3.7)	19m 22s
Build on linux systems (ubuntu-22.04, 11.7, 37, 3.7, -DNGP_BUILD_WITH_GUI=OFF -DNGP_BUILD_WITH_VU...	9m 38s
Update continuous development release	0s
	3h 38m 3s

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