📝 Fix code sample in documentation (#3094)

docs/advanced/pitfalls.mdx

@@ -71,7 +71,7 @@ If you must use intervals, use references as well, but keep in mind that this is
 
 ```jsx
 useEffect(() => {
-  const interval = setInterval(() => ref.current.position.x += 0.1), 1)
+  const interval = setInterval(() => ref.current.position.x += 0.1, 1)
   return () => clearInterval(interval)
 }, [])
 ```