docs: 优化文档

src/hooks/useNestedEvent.ts

@@ -1,7 +1,7 @@
 import { ref, onMounted, onUnmounted, Ref } from 'vue'
 
 const useNestedEvent = (elementRef: Ref<HTMLElement | null>) => {
-    const event = ref(false)
-    return event
-  }
-  export default useNestedEvent
+  const event = ref(false)
+  return event
+}
+export default useNestedEvent