docs: do not save the config in gallery example #1871

Job	Run time
Build wheels on Linux (x86_64)	18m 52s
Build wheels on Linux (aarch64/manylinux)	9m 59s
Build wheels on Linux (aarch64/musllinux)	6m 33s
Build wheels on macOS (arm64)	8m 14s
Build wheels on macOS (x86_64)	8m 34s
Build wheels for WebAssembly	6m 34s
Build wheels on Windows (Win32)	13m 15s
Build wheels on Windows (x64)	25m 46s
Build wheels on Windows (ARM64)	15m 54s
Build with sanitizers for debugging purposes	2m 9s
Build sdist and test extra dependencies	3m 0s
Build wheels on macOS (arm64)	9m 5s
Build wheels on macOS (x86_64)	9m 18s
Build sdist and test extra dependencies	2m 24s
Build wheels for WebAssembly	6m 34s
Build wheels on Linux (aarch64/manylinux)	9m 59s
Build wheels on Windows (x64)	25m 46s
Build with sanitizers for debugging purposes	2m 9s
Build wheels on Linux (x86_64)	18m 52s
Build wheels on Windows (Win32)	13m 15s
Build wheels on Linux (aarch64/musllinux)	6m 33s
Build wheels on Windows (ARM64)	15m 54s
	3h 58m 39s

Provide feedback