Tweak comment.

include/rive/artboard.hpp

diff --git a/include/rive/artboard.hpp b/include/rive/artboard.hpp
index 4f45f57..70fa6b2 100644
--- a/include/rive/artboard.hpp
+++ b/include/rive/artboard.hpp
@@ -68,8 +68,8 @@
 
         Core* resolve(uint32_t id) const override;
 
-        /// Find the index of a component in the artboard the object in the artboard. The artboard
-        /// itself lives at index 0 so we use that as a flag for not found.
+        /// Find the id of a component in the artboard the object in the artboard. The artboard
+        /// itself has id 0 so we use that as a flag for not found.
         uint32_t idOf(Core* object) const;
 
         // EXPERIMENTAL -- for internal testing only for now.