Git icon changed on landing page

Signed-off-by: Sadikow <siwara.sadikow@iese.fraunhofer.de>
diff --git a/config.toml b/config.toml
index e955de5..54498ca 100644
--- a/config.toml
+++ b/config.toml
@@ -66,9 +66,9 @@
 
 [[menu.topbar]]
     weight = 1
-    name = "GitHub"
+    name = "Git Repository"
     url = "https://projects.eclipse.org/projects/technology.basyx/downloads"
-    pre = "<i class='fa fa-2x fa-github'></i>"
+    pre = "<i class='fa fa-2x fa-git-square'></i>"
 
 #[[menu.topbar]]
 #    weight = 2