[BUG] Commands names violates documented convention

[LeiYangGH]

Describe the bug
The doc Command Names says:

Don't suffix ReactiveCommand properties' names with Command; instead, name the property using a verb that describes the command's action. For example:

public ReactiveCommand Synchronize { get; private set; }

But the sample code can find violations everywhere, just name a few:

CalculateCommand
https://github.com/reactiveui/ReactiveUI.Samples/blob/main/wpf/ReactiveUI.Samples.Basics/ViewModels/CalculatorViewModel.cs

StartAsyncCommand
https://github.com/reactiveui/ReactiveUI.Samples/blob/main/wpf/ReactiveUI.Samples.Commands/RxUI/MainVIewModel.cs