Adds the readme and image

keymaps/default/readme.md

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+# The default `vckyb6`keymap
+
+The default `vckyb6` keymap is as follows:
+
+```C
+[0] = LAYOUT(
+    LCA(KC_C),   KC_F11,      LCTL(KC_D), 
+    MO(1),       LCTL(KC_E),  LCTL(KC_D)
+  ),
+  [1] = LAYOUT(
+    LCA(KC_C),    KC_F11,          RESET,
+    KC_TRNS,      LCTL(KC_E),      KC_MUTE
+  )
+```
+
+![vckyb6 description](vckyb6-keymap.png)