"Notes to Implementers" referenced, but only "Notes to Inheritors" exists

In the Remarks section, it says, "See 'Notes to Implementers' section for more information..." but there is only a "Notes to Inheritors" section. I don't know which way is the right way, but it seems like there's a mismatch that should be fixed.

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* ID: ce3ba39f-7771-e6ab-15bf-68b3c1f22bf2
* Version Independent ID: 2686c1af-077c-2529-3e20-b5e8deb86e77
* Content: [MarkupExtension.ProvideValue(IServiceProvider) Method (System.Windows.Markup)](https://docs.microsoft.com/en-us/dotnet/api/system.windows.markup.markupextension.providevalue?view=netframework-4.7.2)
* Content Source: [xml/System.Windows.Markup/MarkupExtension.xml](https://github.com/dotnet/dotnet-api-docs/blob/master/xml/System.Windows.Markup/MarkupExtension.xml)
* Product: **.net**
* GitHub Login: @dotnet-bot
* Microsoft Alias: **dotnetcontent**