add macbook keyboard visualization

* #44

Author: Vonng

docs/README.md

@@ -90,7 +90,7 @@ Capslock works on **ANSI** keyboards and similar layouts. It literally remaps ev
 
 ![](img/keyboard.jpg)
 
-> **[Control Planes](#Control-Planes)** are defined by combination of four extra left modifiers: <kbd>⌘</kbd><kbd>⌥</kbd><kbd>⌃</kbd><kbd>⇧</kbd>.This image shows the layout of control plane 0.
+> **[Control Planes](#Control-Planes)** are defined by combination of four extra left modifiers: <kbd>⌘</kbd><kbd>⌥</kbd><kbd>⌃</kbd><kbd>⇧</kbd>.This image shows the layout of control plane 0,1,2.
 
 |           Category            | Color  | Description                                                  |
 | :---------------------------: | :----: | :----------------------------------------------------------- |
@@ -329,6 +329,18 @@ Number keys <kbd>1</kbd>, <kbd>2</kbd>, …, <kbd>9</kbd>, <kbd>0</kbd> are used
 |   8   |    <kbd>✱</kbd><kbd>⇧</kbd>     |  10   |    <kbd>✱</kbd><kbd>⌥</kbd><kbd>⇧</kbd>    |  15   |   <kbd>✱</kbd><kbd>⌘</kbd><kbd>⌥</kbd><kbd>⌃</kbd><kbd>⇧</kbd>   |
 |       |           |  12   |    <kbd>✱</kbd><kbd>⌃</kbd><kbd>⇧</kbd>    |       |           |
 
+![](img/plane0.png)
+
+> Plane 0
+
+![](img/plane1.png)
+
+> Plane 1
+
+![](img/plane2.png)
+
+> Plane 2
+
 </details>