[gimp-web] content: add internal link when writing about "archives of the mailing…

[Jehan <jehanp src gnome org>]

commit 6ab20f503a230f471ae90c7c5f8ed406e1e9352a
Author: Jehan <jehan girinstud io>
Date:   Wed Nov 10 16:00:36 2021 +0100

    content: add internal link when writing about "archives of the mailing…
    
    … lists".

 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 e38b181e..131a53d5 100644
--- a/content/about/discuss.md
+++ b/content/about/discuss.md
@@ -150,4 +150,4 @@ questions*</span>:
 * [Usability](https://gui.gimp.org). Ongoing work to improve user experience of GIMP.
 * [Development](https://wiki.gimp.org/index.php/Main_Page). If you wish to contribute, please check the wiki 
for basic information for developers.
 
-We also suggest checking archives of the mailing lists for existing discussions.
+We also suggest checking [archives of the mailing lists](#mailing-lists) for existing discussions.