diff --git a/pkg/adt/README.md b/pkg/adt/README.md
index 9f010a1cb..26d2e84ae 100644
--- a/pkg/adt/README.md
+++ b/pkg/adt/README.md
@@ -47,3 +47,5 @@ Deleting the node `11` triggers multiple rotates for rebalancing:
 
 Try yourself at https://www.cs.usfca.edu/~galles/visualization/RedBlack.html.
 Hello World 2
+
+🥚
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