[mediaqueries-5] Update latest version link

Author: frivoal

mediaqueries-5/Overview.bs

@@ -1,14 +1,15 @@
 <pre class='metadata'>
 Title: Media Queries Level 5
 Group: csswg
-Shortname: mediaqueries-5
+Shortname: mediaqueries
 Level: 5
 Status: ED
 !Delta Spec: yes
 Status Text: Once complete, this specification will include and extend <cite>Media Queries Level&nbsp;4.</cite> [[MEDIAQUERIES-4]]
 Work Status: Exploring
 ED: https://drafts.csswg.org/mediaqueries-5/
 TR: https://www.w3.org/TR/mediaqueries-5/
+Previous Version: https://www.w3.org/TR/2020/WD-mediaqueries-5-20200318/
 Previous Version: https://www.w3.org/TR/2020/WD-mediaqueries-5-20200303/
 Editor: Dean Jackson, Apple, w3cid 42080
 Editor: Florian Rivoal, Invited Expert, https://florian.rivoal.net, w3cid 43241