checklists: releases: Add note about moving evolutions

Evolutions for the current release need to be moved into the directory
named after the release.

Change-Id: Id6afc46e7042d88b627dd110b119defd00d9571b
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
diff --git a/docs/checklists/releases.md b/docs/checklists/releases.md
index c408406..cffcb55 100644
--- a/docs/checklists/releases.md
+++ b/docs/checklists/releases.md
@@ -8,6 +8,7 @@
   - This must be done from a shell session inside the OpenBMC CI Docker
     container for consistency
 
+- [ ] Rename the directory for unreleased evolutions
 - [ ] Commit the changes above with the subject `libpldm: Release <version>`
 - [ ] Push the release commit for review in Gerrit
 - [ ] Submit the release commit once approved