Update README.md

Author: pkiop

README.md

@@ -11,6 +11,8 @@
 
 ### [개발 배경](https://github.com/pkiop/lifemanager/wiki/%EA%B0%9C%EB%B0%9C-%EB%B0%B0%EA%B2%BD)
 
+### [WIKI](https://github.com/pkiop/lifemanager/wiki)
+
 
 <p align='center'>
     <img src="https://img.shields.io/badge/Typescript-v4.0.3-blue?logo=typescript"/>