Update README.md

README.md

@@ -29,6 +29,7 @@ Free, Open-source web page monitoring, notification and change detection. Don't
 #### Example use cases
 
 - Products and services have a change in pricing
+- _Out of stock notification_ and _Back In stock notification_
 - Governmental department updates (changes are often only on their websites)
 - New software releases, security advisories when you're not on their mailing list.
 - Festivals with changes