Add expand attribute

Author: clarkd

.github/pull_request_template.md

@@ -1,5 +1,5 @@
 **Switch to the `Preview` tab above and select the appropriate PR template to use for this change:**
 
-- [Adding a new plugin](?template=Add%20a%20new%20plugin.md)
-- [Change to an existing plugin](?template=Change%20to%20an%20existing%20plugin.md)
-- [Miscellaneous change e.g. docs/metadata](?template=Miscellaneous%20change.md)
+- [Adding a new plugin](?template=Add%20a%20new%20plugin.md&expand=1)
+- [Change to an existing plugin](?template=Change%20to%20an%20existing%20plugin.md&expand=1)
+- [Miscellaneous change e.g. docs/metadata](?template=Miscellaneous%20change.md&expand=1)