add missing newlines at end of files

Signed-off-by: Agathe Porte <agathe.porte@canonical.com>

Author: gagath

docs/explanation/stable-release-updates.md

@@ -128,4 +128,4 @@ model.
 [Ubuntu archive has a single proposed pocket]: https://canonical-ubuntu-packaging-guide.readthedocs-hosted.com/en/latest/explanation/archive/#archivepockets
 [Discourse - Ubuntu Kernel 4/2 SRU Cycle Announcement]: https://discourse.ubuntu.com/t/ubuntu-kernel-4-2-sru-cycle-announcement/37478
 [Ubuntu Wiki - Stable Kernel Release Cadence]: https://wiki.ubuntu.com/Kernel/StableReleaseCadence
-[Kernel team stable dashboard]: https://kernel.ubuntu.com/reports/kernel-stable-board/
+[Kernel team stable dashboard]: https://kernel.ubuntu.com/reports/kernel-stable-board/

docs/reference/index.md

@@ -31,4 +31,4 @@ patch-acceptance-criteria
 :caption: General
 
 glossary
-```
+```