Fix code example directives #1318

Job	Run time
ruff	8s
mypy	28s
sdist	59s
parse_sdl (windows-latest, 3.2.16)	38s
parse_sdl (macos-latest, 3.2.16)	26s
tox (ubuntu-latest)	2m 18s
build (ubuntu-latest, 3.10, x64)	3m 47s
build (ubuntu-latest, pypy-3.10, x64)	3m 7s
build (windows-latest, 3.10, x64)	3m 27s
linux-wheels (x86_64, pp310-manylinux*)	3m 51s
test-docs	2m 1s
pyodide	2m 54s
linux-wheels (x86_64, cp310-manylinux*)	4m 1s
linux-wheels (aarch64, pp310-manylinux*)	3m 29s
build (windows-latest, pypy-3.10, x64)	3m 54s
build (windows-latest, 3.10, x86)	4m 7s
linux-wheels (aarch64, cp310-manylinux*)	4m 2s
build-macos (cp310-*_universal2)	1m 56s
build-macos (pp310-*)	7m 1s
publish	-2s
	52m 32s

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