diff --git a/REST-API-Cards.md b/REST-API-Cards.md
index 20a0af3..2f75324 100644
--- a/REST-API-Cards.md
+++ b/REST-API-Cards.md
@@ -1,4 +1,8 @@
-## Retrieve cards by swimlane id
+# Disclaimer
+
+This page tries to be as up to date as possible. If you see something wrong here, feel free to update the page and help other people like you, that greatly depends on our APIs. If you don't feel comfortable doing this kind of changes, please contact us by creating an [issue](https://github.com/wekan/wekan/issues/new).
+
+# Retrieve cards by swimlane id
 
 Please somebody add example by looking this: