Update other files related to the 3.1.0 release

Author: Kordyjan

Diff for: _downloads/2021-10-18-3.1.0.md

@@ -0,0 +1,9 @@
+---
+title: Scala 3.1.0
+start: 18 October 2021
+layout: downloadpage
+release_version: 3.1.0
+release_date: "October 18, 2021"
+permalink: /download/3.1.0.html
+license: <a href="https://www.scala-lang.org/license/">Apache License, Version 2.0</a>
+---

Diff for: download/scala3.md

@@ -2,7 +2,7 @@
 layout: downloadpage
 title: Download Scala 3
 
-release_version: 3.0.2
-release_date: "September 1, 2021"
+release_version: 3.1.0
+release_date: "October 18, 2021"
 license: <a href="https://www.scala-lang.org/license/">Apache License, Version 2.0</a>
 ---

Diff for: index.md

@@ -9,7 +9,7 @@ headerButtonUrl: "/what-is-scala/"
 
 # Links of the Download / API Docs sections
 gettingStarted:
-  mainTitle: "Scala 3.0.2"
+  mainTitle: "Scala 3.1.0"
   mainUrl: "/download/scala3.html"
   subtitle: "Documentation"
   subtitleLink: "https://docs.scala-lang.org/scala3"