update doc of `get_bind_group_layout` #982

Job	Run time
Test Linting	10s
Test Docs	25s
Build wheels on ubuntu-latest	1m 8s
Build wheels on windows-latest	2m 50s
Build sdist	29s
Build wheels on macos-latest	4m 49s
Test Linux py38	45s
Test Linux py39	48s
Test Codegen	44s
Test Linux py310	49s
Test Examples	41s
Test Linux py311	43s
Test Linux py312	51s
Test Imports	16s
Test PyInstaller	1m 14s
Test Linux pypy3	2m 18s
Publish to Github and Pypi	0s
	19m 0s

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