Contributing Section

Added redirect to BaSyx Wiki Contributing page

Signed-off-by: Siwara Schmitt <siwara.schmitt@iese.fraunhofer.de>

config.toml

diff --git a/config.toml b/config.toml
index b6dbecc..bfa59ec 100644
--- a/config.toml
+++ b/config.toml
@@ -73,7 +73,7 @@
 	
 [[menu.main]]
     name = "Contributing"
-	url  = "/contributing/"
+	url  = "https://wiki.eclipse.org/BaSyx_/_Developer_/_Contributing"
     weight = 50