[meld/pages] Update for 3.22.0 release

[Kai Willadsen <kaiw src gnome org>]

commit 950989cfb9ae703fed5f91302b694105200fdf7f
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Sep 4 14:47:57 2022 +1000

    Update for 3.22.0 release

 _data/releases.yml | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)
---
diff --git a/_data/releases.yml b/_data/releases.yml
index df657aec..43ed4c18 100644
--- a/_data/releases.yml
+++ b/_data/releases.yml
@@ -1,16 +1,8 @@
-- version: 3.20.4
-  date: 2021-08-13
+- version: 3.22.0
+  date: 2022-09-04
   type: stable
   description: >
     The most recent stable release is the best option for most users. We keep changes to these releases to a 
minimum.
   platforms:
     - linux
     - windows
-
-- version: 3.21.3
-  date: 2022-08-14
-  type: development
-  description: >
-     Our development releases are usually fairly reliable, but you'll probably run in to a few issues. 
Please tell us!
-  platforms:
-    - linux