Update PR template (#4264)

* Update PR template

* Update .github/pull_request_template.md

Co-authored-by: Somhairle MacLeòid <[email protected]>

* Update .github/pull_request_template.md

Co-authored-by: Somhairle MacLeòid <[email protected]>

* Update .github/pull_request_template.md

Co-authored-by: Somhairle MacLeòid <[email protected]>

* Prettify

---------

Co-authored-by: Somhairle MacLeòid <[email protected]>

Author: lrapoport-cf

.github/pull_request_template.md

@@ -2,21 +2,17 @@ Fixes # [insert GH or internal issue number(s)].
 
 **What this PR solves / how to test:**
 
-**Associated docs issue(s)/PR(s):**
-
-- [insert associated docs issue(s)/PR(s)]
-
-**Author has included the following, where applicable:**
-
-- [ ] Tests
-- [ ] Changeset ([Changeset guidelines](https://github.com/cloudflare/workers-sdk/blob/main/CONTRIBUTING.md#changesets))
-
-**Reviewer is to perform the following, as applicable:**
-
-- Checked for inclusion of relevant tests
-- Checked for inclusion of a relevant changeset
-- Checked for creation of associated docs updates
-- Manually pulled down the changes and spot-tested
+**Author has addressed the following:**
+
+- Tests
+  - [ ] Included
+  - [ ] Not necessary because:
+- Changeset ([Changeset guidelines](https://github.com/cloudflare/workers-sdk/blob/main/CONTRIBUTING.md#changesets))
+  - [ ] Included
+  - [ ] Not necessary because:
+- Associated docs
+  - [ ] Issue(s)/PR(s):
+  - [ ] Not necessary because:
 
 **Note for PR author:**