chore(docs): update TOC

Author: eryajf

README.md

@@ -22,7 +22,6 @@
 
 <!-- START doctoc generated TOC please keep comment here to allow auto update -->
 <!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
-
 **目录**
 
 - [ℹ️ 项目简介](#-%E9%A1%B9%E7%9B%AE%E7%AE%80%E4%BB%8B)