Typo in `evaluate_all_with_rank` documentation?

[Rafferty97]

In the documentation for PartitionEvaluator::evaluate_all_with_rank:

https://docs.rs/datafusion/latest/datafusion/logical_expr/trait.PartitionEvaluator.html#method.evaluate_all_with_rank

Is there a typo in the example table? It shows the ranks as being 1, 1, 3, 4, 5, but shouldn't it be 1, 1, 3, 4, 4? Or am I just misunderstanding the RANK function somehow?

It's a minor thing, but it did trip me up when I was trying to understand this API.

Also, in the evaluate method above it, there appears to be an extraneous "x":

Evaluate window function on a range of rows in an input partition.x

I hope this isn't a nuisance ticket. Are these okay or should I batch up typos/documentation improvements into bigger issues? Or should I just bypass opening an issue and just submit a PR?