Fix of a spelling mistake

Author: amulya349

Diff for: libraries/LiquidCrystal/LiquidCrystal.cpp

@@ -96,7 +96,7 @@ void LiquidCrystal::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) {
 
   // SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
   // according to datasheet, we need at least 40ms after power rises above 2.7V
-  // before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50
+  // before sending commands. Arduino can turn on way before 4.5V so we'll wait 50
   delayMicroseconds(50000); 
   // Now we pull both RS and R/W low to begin commands
   digitalWrite(_rs_pin, LOW);