Fixed broken example code in AnimationBuilder.Create docs #4392
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Fixes
Fixes a broken code example in the documentation for the AnimationBuilder.Create() method.
PR Type
What kind of change does this PR introduce?
What is the current behavior?
https://docs.microsoft.com/en-us/dotnet/api/microsoft.toolkit.uwp.ui.animations.animationbuilder?view=win-comm-toolkit-dotnet-7.0
What is the new behavior?
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