Exercise: Change Hello World
1. Rename `App()` function name to `Hello()` or any name you choose 2. Rename `<App />` on the final line to match your new function name. 3. Change the `Hello World` string to another message 4. Rename `root` on the final line to anything else. 5. Open `index.html` and change the div id to match the new Id name
The purpose of this exercise is that you see how many things we can change in our code while still keeping the same result.