Add note about description

.github/PULL_REQUEST_TEMPLATE.md

@@ -3,9 +3,9 @@ Thank you for taking the time to work on a Pull Request for this project!
 To ensure your PR is dealt with swiftly please check the following:
 
 - [ ] Your submissions are formatted according to the guidelines in the [contributing guide](CONTRIBUTING.md).
-
 - [ ] Your changes are made in the [README](../README.md) file, not the auto-generated JSON. 
 - [ ] Your additions are ordered alphabetically.
+- [ ] Your submission has a useful description.
 - [ ] Each table column should be padded with one space on either side.
 - [ ] You have searched the repository for any relevant issues or PRs.
 - [ ] Any category you are creating has the minimum requirement of 3 items.