diff --git "a/3\354\243\274\354\260\250/yundev/Readme.md" "b/3\354\243\274\354\260\250/yundev/Readme.md"
new file mode 100644
index 0000000..278d75e
--- /dev/null
+++ "b/3\354\243\274\354\260\250/yundev/Readme.md"
@@ -0,0 +1,3 @@
+# 3주차 
+## URL
+- https://www.notion.so/yundev/3nd-5-30-9acb390dfe5d41fa9e0e3aac1e3d9510
diff --git "a/4\354\243\274\354\260\250/yundev/README.md" "b/4\354\243\274\354\260\250/yundev/README.md"
new file mode 100644
index 0000000..a0eb705
--- /dev/null
+++ "b/4\354\243\274\354\260\250/yundev/README.md"
@@ -0,0 +1,3 @@
+# 4주차
+## URL
+- https://www.notion.so/yundev/4th-6-6-f46dc10d8bd343e3be143be08168e34f