diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -14,3 +14,4 @@
 👉 https://docs.google.com/document/d/1Haxn1EhAtCpsOfd5VmQx-Qg3wLDNkddzaj5pjqmydsE/edit?usp=sharing 
 
 ## Goole I/O 2021
+👉 https://drive.google.com/file/d/1BZJTssp06GNbWxAYAcyMD0JbFEiM0Ele/view?usp=sharing