Update GitHub templates

.github/pull_request_template.md

@@ -1,26 +1,35 @@
-<!-- Reference the source of this Pull Request. -->
-<!-- Remove any which are not applicable. -->
+<!-- Source of this Pull Request. Remove any that are not applicable. -->
+
 **Issue**: #
 
+**Ticket**:
+
+**Slack Thread**:
+
 ---
 
 ### Description
+
 <!-- Describe the changes made in this Pull Request and the reason for these changes. -->
 
-### Steps to test:
-<!-- Describe the steps to replicate the issue and confirm the fix -->
-<!-- Try to include as many details as possible. -->
-1.
-1.
-1.
+### Steps to Test
+
+<!-- Describe the steps to replicate the issue and confirm the fix. -->
+<!-- Include as many details as possible. -->
+
+1. Go to '…'
+2. Click on '…'
+3. Scroll down to …'
 
 ### Documentation
+
 <!-- Will this change require new documentation or changes to existing documentation? -->
 <!-- A good way to answer it is to ask: will more than one customer ever need to know about this? -->
 - [ ] This PR needs documentation (has the "Documentation" label).
-<!-- For an extra 💯 include further details about which change requires documentation -->
+<!-- For an extra 💯 include further details about which change requires documentation. -->
+
+### Changelog Entry
 
-### Changelog entry
 > Enter a summary of all changes on this Pull Request. This will appear in the changelog if accepted.
 
 Closes # .