Missing information on setting clustering with attributes

### Type of issue

Missing information

### Description

In EF6 one could use the `[Index(..., IsClustered=true)]` attribute parameters to specify clustering, in EF Core there is no documentation on this parameter at all. The parameter does no longer exist on the `IndexAttribute`, so how to use it in EF Core?

### Page URL

https://learn.microsoft.com/en-us/ef/core/modeling/indexes?source=recommendations&tabs=data-annotations

### Content source URL

https://github.com/dotnet/EntityFramework.Docs/blob/main/entity-framework/core/modeling/indexes.md

### Document Version Independent Id

25dd8ac4-2521-5200-0ddf-63ac8c83787a

### Article author

@roji