Update README.md

Author: jamesdimick

README.md

@@ -8,5 +8,7 @@ It was created in Unity **2018.3.0** but it should work fine in older versions _
 
 # Limitations
 * There is currently no way to tell between an instanced material property and a non-instanced material property on the C# side in Unity. This means that **all** properties are always included in this component. You must keep track yourself which properties are instanced in your shaders and only change those specific properties via this component. Changing non-instanced properties via this component yields undefined behaviour and can even cause performance issues if Unity decides to create new material instances behind the scenes.
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 * This component also displays normally-hidden properties. Use caution when modifying these properties.
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 * Some more advanced properties cannot be properly represented via this component due to limitations with accessing property info in the currently available Unity APIs.