diff --git a/week_02/29/README.md b/week_02/29/README.md
index 4287ca8617970fa8fc025b75cb319c7032706910..855b204056b28787952101f6e559dabf07526d34 100644
--- a/week_02/29/README.md
+++ b/week_02/29/README.md
@@ -1 +1,4 @@
-#
\ No newline at end of file
+2.UnSafe
+https://app.yinxiang.com/fx/a54bb865-7562-4bc0-aacc-2e9f9f471d9a
+2.AtomicInteger
+https://app.yinxiang.com/fx/db2141b0-3e22-48da-9dc1-734c26039cb2