Update README.md

Author: josemoracard

exercises/22-The_Beatles/README.md

@@ -14,7 +14,7 @@ Below is the chorus of one of the most famous Beatles songs, *Let It Be*:
 
 1. Create a function called `sing()` that returns a string with the exact same lyrics which you can hear from the 3:20 mark to the end of the song at 3:50. 
 
-## 📎 Example output: 
+## 💻 Example output: 
 
 ```js
 "let it be, let it be, let it be, let it be, there will be an answer, let it be, let it be, let it be, let it be, let it be, whisper words of wisdom, let it be"