diff --git a/README.md b/README.md
index 47886c2..b80432b 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # dsa-4th-edition
 
+https://gitlab.com/foundry-vtt-dsa/dsa-4.1-core/dsa-4.1-system
+-> comparison for mechanics