Merge commit 'b37441d0270734150e3fabc3b1aae75ab57631c8' into 2.13.x

Author: SethTisue

src/main/scala/MakeReleaseNotes.scala

@@ -98,7 +98,7 @@ object MakeReleaseNotes:
     </html>"""
       case MarkDown => s"""---
 category: announcement
-permalink: /news/$version
+permalink: /news/$version/
 title: "Scala ${currentTag drop 1} is now available!"
 ---
 ${rawHandWrittenNotes()}