The doc of GenericListArray is confusing

[HaoYang670]

Describe the bug
https://github.com/apache/arrow-rs/blob/master/arrow/src/array/array_list.rs#L52

/// Generic struct for a primitive Array
///
/// For non generic lists, you may wish to consider using [`ListArray`] or [`LargeListArray`]`
pub struct GenericListArray<OffsetSize> {

The doc of GenericListArray says it is the struct for a primitive array, which makes me a little confused.
It is the generic type for Variable-size List Array, isn't it?

Came up when working on #1392