Wrong Examples for PermutationFeatureImportanceNonCalibrated Method

The example is for the `PermutationFeatureImportance`, not `PermutationFeatureImportanceNonCalibrated`.

It looks like the example and remarks are copied over from:

https://learn.microsoft.com/en-us/dotnet/api/microsoft.ml.permutationfeatureimportanceextensions.permutationfeatureimportance?view=ml-dotnet

---
#### Document Details

⚠ *Do not edit this section. It is required for learn.microsoft.com ➟ GitHub issue linking.*

* ID: ed3c78b4-bc81-7481-aec2-ffb27aa386d7
* Version Independent ID: ed3c78b4-bc81-7481-aec2-ffb27aa386d7
* Content: [PermutationFeatureImportanceExtensions.PermutationFeatureImportanceNonCalibrated Method (Microsoft.ML)](https://learn.microsoft.com/en-us/dotnet/api/Microsoft.ML.PermutationFeatureImportanceExtensions.PermutationFeatureImportanceNonCalibrated?view=ml-dotnet&viewFallbackFrom=netstandard-2.0)
* Content Source: [dotnet/xml/Microsoft.ML/PermutationFeatureImportanceExtensions.xml](https://github.com/dotnet/ml-api-docs/blob/live/dotnet/xml/Microsoft.ML/PermutationFeatureImportanceExtensions.xml)
* Product: **dotnet-ml-api**
* GitHub Login: @natke
* Microsoft Alias: **nakersha**