docs: add initial cleanup log message

Author: k35o

src/content/learn/synchronizing-with-effects.md

@@ -856,7 +856,7 @@ export default function App() {
 
 You will see three logs at first: `Schedule "a" log`, `Cancel "a" log`, and `Schedule "a" log` again. Three second later there will also be a log saying `a`. As you learned earlier, the extra schedule/cancel pair is because React remounts the component once in development to verify that you've implemented cleanup well.
 
-Now edit the input to say `abc`. If you do it fast enough, you'll see `Schedule "ab" log` immediately followed by `Cancel "ab" log` and `Schedule "abc" log`. **React always cleans up the previous render's Effect before the next render's Effect.** This is why even if you type into the input fast, there is at most one timeout scheduled at a time. Edit the input a few times and watch the console to get a feel for how Effects get cleaned up.
+Now edit the input to say `abc`. If you do it fast enough, you'll see `Cancel "a" log` immediately followed by `Schedule "ab" log`, `Cancel "ab" log` and `Schedule "abc" log`. **React always cleans up the previous render's Effect before the next render's Effect.** This is why even if you type into the input fast, there is at most one timeout scheduled at a time. Edit the input a few times and watch the console to get a feel for how Effects get cleaned up.
 
 Type something into the input and then immediately press "Unmount the component". Notice how unmounting cleans up the last render's Effect. Here, it clears the last timeout before it has a chance to fire.