Update README.md

Author: yoshitaka7

README.md

@@ -1,5 +1,9 @@
-# React ToDoリスト
-Hooksが出る前の書き方
+# React TODO APP (without hooks)
+<p align="center">
+ <a href="https://ja.reactjs.org/">
+  <img src="https://user-images.githubusercontent.com/89970444/173062775-57dffcbc-788f-4e1d-bf3e-d8fcc04e6d35.svg" height="45px">
+ </a>
+</p>
 
 ## Getting Started
 `git clone`