docs: Replace the shortcuts to <kbd> tag

README.md

@@ -53,15 +53,15 @@
 
 ## 快捷键
 
-1. `command + [`：返回上一个页面
-2. `command + ]`：去下一个页面
-3. `command + ↑`：自动滚动到页面顶部
-4. `command + ↓`：自动滚动到页面底部
-5. `command + r`：刷新页面
-6. `command + w`：隐藏窗口，非退出
-7. `command + -`：缩小页面
-8. `command + =`：放大页面
-9. `command + 0`：重置页面缩放
+1. <kbd>⌘</kbd> + <kbd>[</kbd>：返回上一个页面
+2. <kbd>⌘</kbd> + <kbd>]</kbd>：去下一个页面
+3. <kbd>⌘</kbd> + <kbd>↑</kbd>：自动滚动到页面顶部
+4. <kbd>⌘</kbd> + <kbd>↓</kbd>：自动滚动到页面底部
+5. <kbd>⌘</kbd> + <kbd>r</kbd>：刷新页面
+6. <kbd>⌘</kbd> + <kbd>w</kbd>：隐藏窗口，非退出
+7. <kbd>⌘</kbd> + <kbd>-</kbd>：缩小页面
+8. <kbd>⌘</kbd> + <kbd>=</kbd>：放大页面
+9. <kbd>⌘</kbd> + <kbd>0</kbd>：重置页面缩放
 
 此外还支持双击头部进行全屏切换，拖拽头部进行移动窗口，还有其他需求，欢迎提过来。
 

README_EN.md

@@ -53,15 +53,15 @@ More common apps can be downloaded from [Release](https://github.com/tw93/Pake/r
 
 ## Shortcuts
 
-1. `command + [`：Return to the previous page
-2. `command + ]`：Go to the next page
-3. `command + ↑`：Auto scroll to top of page
-4. `command + ↓`：Auto scroll to bottom of page
-5. `command + r`：Refresh Page
-6. `command + w`：Hide window, not quite
-7. `command + -`：ZoomOut Page
-8. `command + =`：ZoomIn Page
-9. `command + 0`：Reset Page zoom
+1. <kbd>⌘</kbd> + <kbd>[</kbd>：Return to the previous page
+2. <kbd>⌘</kbd> + <kbd>]</kbd>：Go to the next page
+3. <kbd>⌘</kbd> + <kbd>↑</kbd>：Auto scroll to top of page
+4. <kbd>⌘</kbd> + <kbd>↓</kbd>：Auto scroll to bottom of page
+5. <kbd>⌘</kbd> + <kbd>r</kbd>：Refresh Page
+6. <kbd>⌘</kbd> + <kbd>w</kbd>：Hide window, not quite
+7. <kbd>⌘</kbd> + <kbd>-</kbd>：Zoom out the page
+8. <kbd>⌘</kbd> + <kbd>=</kbd>：Zoom in the Page
+9. <kbd>⌘</kbd> + <kbd>0</kbd>：Reset the page zoom
 
 In addition, it supports double clicking the head to switch to full screen, and dragging the head to move the window