Updates PR template order (#3855)

Removed duplicate 'Description of change' section from PR template.

Co-authored-by: petyaslavova <petya.slavova@redis.com>

Author: elena-kolevska

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,3 +1,7 @@
+### Description of change
+
+_Please provide a description of the change here._
+
 ### Pull Request check-list
 
 _Please make sure to review and check all of these items:_
@@ -10,7 +14,3 @@ _Please make sure to review and check all of these items:_
 
 _NOTE: these things are not required to open a PR and can be done
 afterwards / while the PR is open._
-
-### Description of change
-
-_Please provide a description of the change here._