Update PR template

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 50a4901..a07e8ab 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -4,7 +4,9 @@
 
 
 
-## Gatekeeper checklist
+## PR checklist
+
+Please tick as appropriate and edit the reasons (e.g.: "backport: not needed because this is a new feature")
 
 - [ ] **changelog** provided, or not required
 - [ ] **backport** done, or not required
@@ -16,4 +18,3 @@
 
 Please refer to the [contributing guidelines](https://github.com/Mbed-TLS/mbedtls/blob/development/CONTRIBUTING.md), especially the
 checklist for PR contributors.
-