Add markup for hotkey

Author: jaychsu

README.md

@@ -154,3 +154,31 @@ Foldable text:
                <summary>Title 1</summary>
                <p>Content 1 Content 1 Content 1 Content 1 Content 1</p>
              </details>
+
+Hotkey:
+
+<kbd>⌘F</kbd>
+
+<kbd>⇧⌘F</kbd>
+
+    Markup : <kbd>⌘F</kbd>
+
+Hotkey list:
+
+| Key | Symbol |
+| --- | --- |
+| Option | ⌥ |
+| Control | ⌃ |
+| Command | ⌘ |
+| Shift | ⇧ |
+| Caps Lock | ⇪ |
+| Tab | ⇥ |
+| Esc | ⎋ |
+| Power | ⌽ |
+| Return | ↩ |
+| Delete | ⌫ |
+| Up | ↑ |
+| Down | ↓ |
+| Left | ← |
+| Right | → |
+