Improve PR template to encourage appropriate context in descriptions

.github/pull_request_template.md

@@ -1,13 +1,24 @@
 # Objective
 
-- Describe the objective or issue this PR addresses.
-- If you're fixing a specific issue, say "Fixes #X".
+Describe the objective or issue this PR addresses.
 
-## Solution
+If you're fixing a specific issue, say "Fixes #X" and the linked issue will automatically be closed when this PR is merged.
+Under each bullet point, describe how this change addressed those objectives if it is not obvious.
 
-- Describe the solution used to achieve the objective above.
+**Changes that will affect external library users must update RELEASES.md before they will be merged.**
 
----
+## Context
+
+Discuss any context that may be needed for a user with only passing acquaintance with this library to understand the changes you've made.
+This may include related issues, previous discussion, or relevant bits of how the library works).
+
+## Feedback wanted
+
+> This section is optional. If there are no particularly tricky or controversial changes, you can delete this section.
+
+Which parts of this PR were you unsure about? Which parts were particularly tricky?
+
+If you're stuck on part of the changes or want feedback early, open a draft PR and list the items that need to be completed here using a checklist.
 
 ## Changelog
 
@@ -22,6 +33,6 @@
 
 > This section is optional. If there are no breaking changes, you can delete this section.
 
-- If this PR is a breaking change (relative to the last release of Bevy), describe how a user might need to migrate their code to support these changes
+- If this PR is a breaking change (relative to the last release of this library), describe how a user might need to migrate their code to support these changes
 - Simply adding new functionality is not a breaking change.
-- Fixing behavior that was definitely a bug, rather than a questionable design choice is not a breaking change.
+- Fixing behavior that was definitely a bug, rather than a questionable design choice, is not a breaking change.