docs: add hide_border option in all language docs (#436)

docs/readme_cn.md

@@ -150,6 +150,7 @@ dark, radical, merko, gruvbox, tokyonight, onedark, cobalt, synthwave, highcontr
 - `hide` - 隐藏特定统计信息 _(以逗号分隔)_
 - `hide_title` - _(boolean)_
 - `hide_rank` - _(boolean)_
+- `hide_border` - _(boolean)_
 - `show_icons` - _(boolean)_
 - `include_all_commits` - 统计总提交次数而不是仅统计今年的提交次数 _(boolean)_
 - `count_private` - 统计私人提交 _(boolean)_
@@ -163,6 +164,7 @@ dark, radical, merko, gruvbox, tokyonight, onedark, cobalt, synthwave, highcontr
 
 - `hide` - 从卡片中隐藏指定语言 _(Comma seperated values)_
 - `hide_title` - _(boolean)_
+- `hide_border` - _(boolean)_
 - `layout` - 在两个可用布局 `default` & `compact` 间切换
 - `card_width` - 手动设置卡片的宽度 _(number)_