docs: do not save the config in gallery example #1870

Job	Run time
Build wheels on Linux (aarch64/manylinux)	10m 0s
Build wheels on Linux (x86_64)	19m 3s
Build with sanitizers for debugging purposes	2m 12s
Build wheels on Linux (aarch64/musllinux)	6m 50s
Build wheels on macOS (x86_64)	17m 58s
Build wheels on macOS (arm64)	9m 6s
Build sdist and test extra dependencies	2m 57s
Build wheels on Windows (x64)	24m 34s
Build wheels on Windows (ARM64)	15m 27s
Build wheels for WebAssembly	6m 26s
Build wheels on Windows (Win32)	14m 36s
	2h 9m 9s

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