fix: fix git repo link in README

README.md

 # Comment
-
 通用评论系统
 
 
 
 ```
 # npm 安装
-$ npm install git+https://git.links123.net/npm/comment.git
+$ npm install git+https://git.links123.net/npm/comment.git --save
 # yarn 安装
 $ yarn add https://git.links123.net/npm/comment.git
 ```