makes the plover keymap correct

keyboard/planck/keymaps/default/keymap.c

@@ -153,7 +153,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------|------+------+------+------+------+------|
  * |      |   S  |   K  |   W  |   R  |   *  |   *  |   R  |   B  |   G  |   S  |   Z  |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * | Exit |      |      |   C  |   V  |             |   N  |   M  |      |      |      |
+ * | Exit |      |      |   A  |   O  |             |   E  |   U  |      |      |      |
  * `-----------------------------------------------------------------------------------'
  */