Update PRs template (#682)

Update pull request template to include programming and development relevance check

Author: JuanPabloDiaz

PULL_REQUEST_TEMPLATE.md

@@ -3,6 +3,7 @@
 Please ensure all items below are checked before creating a pull request:
 
 -   [ ] My changes were made in the `resources` folder, not in the auto-generated `README.md` file or `db` folder
+-   [ ] The resource is _highly_ or _exclusively_ related to **programming** and **development**
 -   [ ] My submission is formatted according to the guidelines in the [contributing guide](CONTRIBUTING.md)
 -   [ ] My submission is ordered alphabetically based on the resource `name`
 -   [ ] My submission has a useful description