Update ONLINE_EDITOR.md

ONLINE_EDITOR.md

 # Online Editor
 
-- Basic
-- With React Router
-- Control cache
-- Using animation
+- Basic([original](https://codesandbox.io/s/6wy4mlkkzn) | [currently](https://codesandbox.io/s/z657w5l4zl))
+
+  <div align="center">
+    <img src="./assets/basic-original.gif" alt="Basic original" width="49%" />
+    <img src="./assets/basic-currently.gif" alt="Basic currently" width="49%" />
+  </div>
+
+- [With React Router](https://codesandbox.io/s/yjn7k230z)
+- [Lifecycle and events](https://codesandbox.io/s/q1xprn1qq)
+- [Control cache](https://codesandbox.io/s/llp50vxnq7)
+- [Using animation](https://codesandbox.io/s/zljyprv8op)