Update CHANGELOG.md

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

CHANGELOG.md

@@ -36,7 +36,7 @@
 - Add cell indexes to all diagnostics ([#9387](https://github.com/astral-sh/ruff/pull/9387))
 - \[`ruff`\] Allow `Hashable = None` in type annotations (`RUF013`) ([#9442](https://github.com/astral-sh/ruff/pull/9442))
 - Avoid infinite loop in constant vs. `None` comparisons ([#9376](https://github.com/astral-sh/ruff/pull/9376))
-- Disambiguate argument descriptors from section headers ([#9427](https://github.com/astral-sh/ruff/pull/9427))
+- [`pydocstyle`] Disambiguate argument descriptors from section headers ([#9427](https://github.com/astral-sh/ruff/pull/9427))
 - Handle raises with implicit alternate branches ([#9377](https://github.com/astral-sh/ruff/pull/9377))
 - Ignore trailing quotes for unclosed l-brace errors ([#9388](https://github.com/astral-sh/ruff/pull/9388))
 - Respect multi-segment submodule imports when resolving qualified names ([#9382](https://github.com/astral-sh/ruff/pull/9382))