Update keymap. (#616)

* changed order of bottom row of symbol layer to ease acess to brackets

* updated readme.md to reflect keymap changes

keyboards/planck/keymaps/callum/keymap.c

@@ -71,7 +71,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |-----------------------------------------------------------------------------------.
  * |  Del |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Del  |
  * |------+------+------+------+------+-------------+------+------+------+------+------|
- * |      |   ~  |   |  |   +  |   [  |   {  |  }   |   ]  |   =  |   \  |   `  |      |
+ * |      |   ~  |   `  |   +  |   =  |   |  |   \  |   [  |   ]  |   {  |   }  |      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |      |      |      |      |      |      |      |      |      |      |      |
  * `-----------------------------------------------------------------------------------'
@@ -79,7 +79,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [_SYMB] = {
   {KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_ESC },
   {KC_DEL,  KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_DEL },
-  {_______, KC_TILD, KC_PIPE, KC_PLUS, KC_LBRC, KC_LCBR, KC_RCBR, KC_RBRC, KC_EQL,  KC_BSLS, KC_GRV,  _______},
+  {_______, KC_TILD, KC_GRV,  KC_PLUS, KC_EQL,  KC_PIPE, KC_BSLS, KC_LBRC, KC_RBRC, KC_LCBR, KC_RCBR, _______},
   {_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______}
 },
 

keyboards/planck/keymaps/callum/readme.md

@@ -31,9 +31,9 @@ On *macOS* I recommend using [Karabiner](https://pqrs.org/osx/karabiner/) and ti
 None of the modifiers are overwritten so that `shift-alt-arrows` etc work as expected.
 
 ## The `SYMB` layer
-![](http://i.imgur.com/iuU144Y.png)
+![](http://i.imgur.com/thh1ne2.png)
 
-The symbol layer has all the numbers and their usual corresponding symbols in the first two rows, with the symbols on the home row since I use them more frequently than the numbers. The third row contains all the remaining symbols, with brackets in the centre; then normally shifted symbols to the left, and non shifted to the right, in order of most to least used.
+The symbol layer has all the numbers and their usual corresponding symbols in the first two rows, with the symbols on the home row since I use them more frequently than the numbers. The third row contains all the remaining symbols, arranged roughly so that the most used symbols are accessible with the strongest fingers.
 
 `esc` and `del` are repeated here since I wanted to be able to reach either, one handed, with either hand.