Fix incorrect directory

Author: Jack Plowman

.github/pull_request_template.md

@@ -1,3 +1,11 @@
 # Warning
 
-Please don't change this description yet. The template will be added by a Github Action very shortly.
+Please update the url to include the template name.
+
+## To use the task template
+
+You must add this as a suffix to the url `?template=.github/PULL_REQUEST_TEMPLATE/task_pull_request_template.md`
+
+## To use the test template
+
+You must add this as a suffix to the url `?template=.github/PULL_REQUEST_TEMPLATE/test_pull_request_template.md`