Is your feature request related to a problem? Please describe.
When attempting to use an xref in an [!INCLUDE] directive it doesn't work.

For example:

Doesn't work

[!INCLUDE [Platforms](xref:GettingStarted.UsingWizard.Platforms)]

Works:

[!INCLUDE [Platforms](using-wizard/platforms.md)]

Describe the solution you'd like
Enable using xref links in include links.

Describe alternatives you've considered
Using url instead, which is not very productive.