[gimp-web] 25 anniv: add link to ZeMarmot

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit f7094560a2fae9ad57d44908d801a9309b34ebb1
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Sun Nov 22 01:23:48 2020 +0300

    25 anniv: add link to ZeMarmot

 content/news/2020/2020-11-this-is-25/index.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/content/news/2020/2020-11-this-is-25/index.md b/content/news/2020/2020-11-this-is-25/index.md
index e5a625ec..84fa27d6 100644
--- a/content/news/2020/2020-11-this-is-25/index.md
+++ b/content/news/2020/2020-11-this-is-25/index.md
@@ -30,7 +30,9 @@ We've been really busy ever since!
 
 - Made more people angry with software's quirks than we'd like to. Got help on that from more passionate 
contributors than we expected to. We can certainly use more help still.
 
-- Got ourselves an animation project called ZeMarmot to make a positive feedback loop involving artists and 
developers. Continue using our chat for conversation with artists, some of which put GIMP through *a lot*. 
That really helps.
+- Got ourselves an animation project called [ZeMarmot][] to make a positive feedback loop involving artists 
and developers. Continue using our chat for conversation with artists, some of which put GIMP through *a 
lot*. That really helps.
+
+[ZeMarmot]: https://film.zemarmot.net/en/ "ZeMarmot animation project"
 
 - Every day, we are one step closer to completing the boring yet extremely important work on refactoring 
GIMP to make way for great new things. Things that we've been meaning to do for a long time. Things that 
users have been expecting for an even longer time.