fix incorrect description of Effect.async interruption cleanup (#1278)

Author: m44rten1

content/src/content/docs/docs/getting-started/creating-effects.mdx

@@ -437,7 +437,7 @@ Effect.runPromise(program).then(console.log) // Output: 1
 
 ### Advanced Usage
 
-For more advanced use cases, `resume` can optionally return an `Effect` that will be executed if the fiber running this effect is interrupted. This can be useful in scenarios where you need to handle resource cleanup if the operation is interrupted.
+For more advanced use cases, the callback passed to Effect.async may return an Effect that will be executed if the fiber running this effect is interrupted. This can be used to perform cleanup when the operation is cancelled.
 
 **Example** (Handling Interruption with Cleanup)