docs: prettier all markdown files

src/style/README.md

@@ -10,15 +10,18 @@ When the text content length exceeds the maximum container width, the excess tex
 
 ```html
 <div class="van-ellipsis">
-  This is a paragraph that displays up to one line of text, and the rest of the text will be omitted.
+  This is a paragraph that displays up to one line of text, and the rest of the
+  text will be omitted.
 </div>
 
 <div class="van-multi-ellipsis--l2">
-  This is a paragraph that displays up to two lines of text, and the rest of the text will be omitted.
+  This is a paragraph that displays up to two lines of text, and the rest of the
+  text will be omitted.
 </div>
 
 <div class="van-multi-ellipsis--l3">
-  This is a paragraph that displays up to three lines of text, and the rest of the text will be omitted.
+  This is a paragraph that displays up to three lines of text, and the rest of
+  the text will be omitted.
 </div>
 ```
 

src/style/README.zh-CN.md

@@ -13,10 +13,14 @@ Vant 中默认包含了一些常用样式，可以直接通过 className 的方
 <div class="van-ellipsis">这是一段最多显示一行的文字，多余的内容会被省略</div>
 
 <!-- 最多显示两行 -->
-<div class="van-multi-ellipsis--l2">这是一段最多显示两行的文字，多余的内容会被省略</div>
+<div class="van-multi-ellipsis--l2">
+  这是一段最多显示两行的文字，多余的内容会被省略
+</div>
 
 <!-- 最多显示三行 -->
-<div class="van-multi-ellipsis--l3">这是一段最多显示三行的文字，多余的内容会被省略</div>
+<div class="van-multi-ellipsis--l3">
+  这是一段最多显示三行的文字，多余的内容会被省略
+</div>
 ```
 
 ### 1px 边框