fix typo

Author: audionerd

docs/actors.mdx

@@ -412,7 +412,7 @@ Callback actors are a bit different from other actors in that they do not do the
 - Do not emit values when used with `.subscribe()`
 - Can not be stopped with `.stop()`
 
-## Higher-level logic
+## Higher-level actor logic
 
 Higher-level actor logic enhances existing actor logic with additional functionality. For example, you can create actor logic that logs or persists actor state: