diff --git a/README.md b/README.md
index db9e1ad..bc4ab0f 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,3 @@
 # Otobo_Update-Compose
 
+https://doc.otobo.de/manual/installation/11.0/de/content/updating-docker.html#updating-the-docker-compose-files
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