disambiguate

docs/stb_voxel_render_interview.md

@@ -104,7 +104,7 @@ after the trailer came out I wrote my own little GPU-accelerated
 version of the engine and thought that was pretty cool. I've
 been tempted many times to extract that and release it, but
 I don't want to steal Voxatron's thunder so I've avoided
-it. You could use this engine to do the same kind of thing,
+it as a library. You could use this engine to do the same kind of thing,
 although it won't be as efficient as an engine dedicated to
 that style of thing would be.