Clarify that D417 only checks docstrings with an arguments section (#… #13

Job	Run time
cargo fmt	19s
Determine changes	8s
mkdocs	2m 38s
cargo build (release)	5m 51s
pre-commit	4m 43s
python package	1m 31s
cargo fuzz build	5m 18s
cargo clippy	2m 3s
benchmarks	0s
cargo shear	27s
cargo test (linux)	1s
cargo build (msrv)	1s
cargo test (linux, release)	1s
cargo test (wasm)	1m 44s
cargo test (windows)	1s
formatter instabilities and black similarity	3m 38s
test scripts	1m 24s
fuzz parser	0s
ecosystem	0s
test ruff-lsp	0s
	29m 48s

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