Update lcd.h

lcd.h

@@ -58,7 +58,8 @@ extern "C" {
     // if you want to use other lib for I2C
     // edit i2c_xxx commands in this library
     // i2c_start(), i2c_byte(), i2c_stop()
-
+    /* TODO: define charmode for big chars (double heigth, double width)
+//#define BIGCHAR				// uncomment for big chars on display
     /* TODO: define displaycontroller */
 #define SH1106                                 // or SSD1306, check datasheet of your display
     /* TODO: define displaymode */