Enhance documentation for System.Numerics.Tensors (#49729)

Typo correction (namespace vs interface)

Author: mirekholec

docs/core/whats-new/dotnet-10/libraries.md

@@ -363,7 +363,7 @@ All of this is serialized as JSON in the <xref:System.IO.Pipelines.Pipe> (format
 
 ### Tensor enhancements
 
-The <xref:System.Numerics.Tensors> interface now includes a nongeneric interface, <xref:System.Numerics.Tensors.IReadOnlyTensor>, for operations like accessing <xref:System.Numerics.Tensors.IReadOnlyTensor.Lengths> and <xref:System.Numerics.Tensors.IReadOnlyTensor.Strides>. Slice operations no longer copy data, which improves performance. Additionally, you can access data nongenerically by boxing to `object` when performance isn't critical.
+The <xref:System.Numerics.Tensors> namespace now includes a nongeneric interface, <xref:System.Numerics.Tensors.IReadOnlyTensor>, for operations like accessing <xref:System.Numerics.Tensors.IReadOnlyTensor.Lengths> and <xref:System.Numerics.Tensors.IReadOnlyTensor.Strides>. Slice operations no longer copy data, which improves performance. Additionally, you can access data nongenerically by boxing to `object` when performance isn't critical.
 
 The tensor APIs are now stable and no longer marked as experimental. While the APIs still require referencing the [System.Numerics.Tensors](https://www.nuget.org/packages/System.Numerics.Tensors) NuGet package, they have been thoroughly reviewed and finalized for the .NET 10 release. The types take advantage of C# 14 extension operators to provide arithmetic operations when the underlying type `T` supports the operation. If `T` implements the relevant [generic math](../../../standard/generics/math.md) interfaces, for example, `IAdditionOperators<TSelf, TOther, TResult>` or `INumber<TSelf>`, the operation is supported. For example, `tensor + tensor` is available for a `Tensor<int>`, but isn't available for a `Tensor<bool>`.