(File) using-live-c-api.md : "contract" should be "contrast"

[DanRathbun]

File: "using-live-c-api.md" entitled "Using the SketchUp Live C API"

In section Entity Life Spans ...

It's important to beware of the life-span of SketchUp's entities when using the Live C API. In contract to the SketchUp Ruby API, the C API's entity references are not invalidated if the internal entities are deleted. Make sure not to hold on to the entity references for long.

The word "contract" in the 2nd sentence should be "contrast".

[thomthom]

Thanks for catching that. (And checking out this example.) 👍