[gimp-web] Add icm.edu.pl mirrors (poland)

[Michael Schumacher <schumaml src gnome org>]

commit 0472b065bc6d9e3265574b36bd8944ca49575822
Author: nmat <15926-nmat users noreply gitlab gnome org>
Date:   Mon Jun 10 22:29:52 2019 +0200

    Add icm.edu.pl mirrors (poland)
    
    * Fix #45

 content/downloads/mirrors2.json | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/content/downloads/mirrors2.json b/content/downloads/mirrors2.json
index c9045973..5adedd2a 100644
--- a/content/downloads/mirrors2.json
+++ b/content/downloads/mirrors2.json
@@ -58,5 +58,12 @@
       "http://mirror.vutbr.cz/gimp";,
       "ftp://mirror.vutbr.cz/gimp";,
       "rsync://mirror.vutbr.cz/gimp"
+    ],
+    "icm.edu.pl" : [
+      "https://ftp.icm.edu.pl/pub/graphics/gimp/";,
+      "http://ftp.icm.edu.pl/pub/graphics/gimp/";,
+      "ftp://ftp.icm.edu.pl/pub/graphics/gimp/";,
+      "rsync://ftp.icm.edu.pl/pub/graphics/gimp/",
+      "gopher://ftp.icm.edu.pl/1/pub/graphics/gimp/";
     ]
 }