[gimp-web] content: update discord link.

[Jehan <jehanp src gnome org>]

commit a309e0857222addf0b236f84202558aa755c440a
Author: Jehan <jehan girinstud io>
Date:   Wed Feb 2 23:41:53 2022 +0100

    content: update discord link.
    
    Apparently previous link was '"temporary membership" option active,
    which means the users are removed from the server the moment they
    disconnect.'
    
    New link thanks to Sevenix on IRC.

 content/about/discuss.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/content/about/discuss.md b/content/about/discuss.md
index da964921..c5253cf7 100644
--- a/content/about/discuss.md
+++ b/content/about/discuss.md
@@ -94,7 +94,7 @@ hosted at *pixls.us*, the community for Free/Open Source Photography.
 
 ## Discord
 
-A [Discord server](https://discord.gg/W28dWtku2W) (another real-time
+A [Discord server](https://discord.gg/kHBNw2B) (another real-time
 discussion channel) is also available. Supports Chat, Voice and Video
 streaming.