improve docs

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

crates/ruff_linter/src/rules/flake8_pyi/rules/generic_not_last_base_class.rs

@@ -11,10 +11,13 @@ use crate::{Fix, FixAvailability, Violation};
 /// not the last base class in the bases tuple.
 ///
 /// ## Why is this bad?
+///
 /// If `Generic[]` is not the final class in the bases tuple, unexpected
 /// behaviour can occur at runtime (See [this CPython issue][1] for an example).
-/// The rule is also applied to stub files, where it won't cause issues at runtime,
-/// because type checkers may also behave unpredictably in this case.
+/// The rule is also applied to stub files, where it won't cause issues at
+/// runtime, because type checkers may not be able to infer an accurate [MRO]
+/// for the class, which could lead to unexpected or inaccurate results when
+/// they analyze your code.
 ///
 /// For example:
 /// ```python
@@ -47,6 +50,7 @@ use crate::{Fix, FixAvailability, Violation};
 /// - [`typing.Generic` documentation](https://docs.python.org/3/library/typing.html#typing.Generic)
 ///
 /// [1]: https://github.com/python/cpython/issues/106102
+/// [MRO]: https://docs.python.org/3/glossary.html#term-method-resolution-order
 #[derive(ViolationMetadata)]
 pub(crate) struct GenericNotLastBaseClass;