Doc/releases/checklist.md: Add reminder to unpack relnotes

Explicitly add this easy-to-forget step. Also add a missing period.

Change-Id: Iaf13155fcc8a70f3565fb2404cef886524fa5161
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47811
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/Documentation/releases/checklist.md b/Documentation/releases/checklist.md
index a80fd85..1cfb110 100644
--- a/Documentation/releases/checklist.md
+++ b/Documentation/releases/checklist.md
@@ -75,7 +75,8 @@
 - [ ] Test the release from the actual release tarballs.
 - [ ] Push signed Tag to repo.
 - [ ] Announce that the release tag is done on IRC.
-- [ ] Upload release files to web server
+- [ ] Upload release files to web server.
+- [ ] Also extract the release notes and place them on the web server.
 - [ ] Upload crossgcc sources to web server.
 - [ ] Update download page to point to files, push to repo.
 - [ ] Write and publish blog post with release notes.