更新 'index.mdx'

index.mdx

@@ -41,7 +41,7 @@ function deploy(name: string) {
 
 ![zeit logo](https://assets.zeit.co/image/upload/front/assets/design/zeit-black-full-logo.svg)
 
-![imgurl](http://ecs.chenxixian.cn:4000/imgs/2019/05/210996b00820b8eb.jpg)
+![imgurl](http://ecs.chenxixian.cn:4000/imgs/2019/05/210996b00820b8eb.jpg =200x115)
 
 <img src = 'http://ecs.chenxixian.cn:4000/imgs/2019/05/886f3538ac567b1c.jpg' width="229" height="150" />