Created lines to uncomment keyboards built upside down

* Reverses column order to fix left-to-right key order that occurs if
PCB assembled upside down.

keyboards/lets_split/rev1/config.h

@@ -36,6 +36,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // wiring of each half
 #define MATRIX_ROW_PINS { B5, B4, E6, D7 }
 #define MATRIX_COL_PINS { F4, F5, F6, F7, B1, B3 }
+// #define MATRIX_COL_PINS { B3, B1, F7, F6, F5, F4 } uncomment this line and comment line above if you need to reverse left-to-right key order
+
 
 #define CATERINA_BOOTLOADER
 

keyboards/lets_split/rev2/config.h

@@ -36,6 +36,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // wiring of each half
 #define MATRIX_ROW_PINS { D7, E6, B4, B5 }
 #define MATRIX_COL_PINS { F6, F7, B1, B3, B2, B6 }
+// #define MATRIX_COL_PINS { B6, B2, B3, B1, F7, F6 } uncomment this line and comment line above if you need to reverse left-to-right key order
 
 #define CATERINA_BOOTLOADER