README.md in matheus-0.3.0 vs README.md in matheus-0.4.0

@@ -9,10 +9,10 @@
 ## Usage
 
 ### `alert-me`
 
 ```sh
-$ alert-me sleep 1 && echo "Done!"
+$ alert-me 'sleep 1 && echo "Done!"'
 Done!
 # plays a sound after the command finishes
 ```
 
 ### `date-of-last`