diff --git a/README b/README
index d3b0a23..b0f8630 100644
--- a/README
+++ b/README
@@ -1 +1,4 @@
-iOS sample app with sdk version 3.7 and CB version 5.0
\ No newline at end of file
+iOS sample app with sdk version 3.7 and CB version 5.0
+
+Integration for v3.7 
+https://docs.google.com/document/d/12lokk0m0KN07s_nkKgWPxMtgwEyCI3P39XCfuydPhyE/edit?usp=sharing