docs: update props

Author: Shimada666

README-zh.md

@@ -112,6 +112,7 @@ Vue.use(CodeDiff);
 | diffStyle      | 差异风格, 单词级差异或字母级差异                                                                                                  | string  | word, char                | word         |
 | trim           | 移除字符串前后空白字符                                                                                                        | boolean | -                         | false        |
 | noDiffLineFeed | 不 diff windows 换行符(CRLF)与 linux 换行符(LF)                                                                            | boolean | -                         | false        |
+| maxHeight      | 组件最大高度，例如 300px                                                                                                    | number  | -                         | undefined    |
 
 ## 拓展高亮语言
 
@@ -186,7 +187,9 @@ v-code-diff 的 1.x 版本相较于 0.x 版本，具有打包体积减小、性
 ## 变更记录
 
 ### 1.0.0
+
 重构后第一版
+
 1. 移除 diff2html 依赖，自行绘制 ui。由于摆脱了 diff2html 依赖，解决了之前很多样式问题
 2. 更准确的语法高亮，更快的高亮速度
 

README.md

@@ -112,6 +112,7 @@ Not recommended, but the relevant capabilities are retained to facilitate migrat
 | diffStyle      | Difference style, word-level differences or letter-level differences                                                                                                    | string  | word, char                | word          |
 | trim           | Remove blank characters at the beginning and end of the string                                                                                                          | boolean | -                         | false         |
 | noDiffLineFeed | Don't diff Windows line feed (CRLF) and Linux line feed (LF)                                                                                                            | boolean | -                         | false         |
+| maxHeight      | Maximum height of component, for example: 300px                                                                                                                         | string  | -                         | undefined     |
 
 ## Extend languages
 
@@ -193,7 +194,8 @@ simultaneously.
 
 ### 1.0.0-alpha.0
 
-1. Remove the diff2html dependency and draw the UI by self. By getting rid of the diff2html dependency, many styling problems have been resolved.
+1. Remove the diff2html dependency and draw the UI by self. By getting rid of the diff2html dependency, many styling
+   problems have been resolved.
 2. More accurate syntax highlighting and faster highlighting speed.
 
 ### 0.3.12