diff --git a/keywords.txt b/keywords.txt
index af73bfd..d7c43c0 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -6,35 +6,35 @@
 # Datatypes (KEYWORD1)
 #######################################
 
-MQ2		KEYWORD1	MQ2
-MQ3		KEYWORD1	MQ3
-MQ4		KEYWORD1	MQ4
-MQ5		KEYWORD1	MQ5
-MQ6		KEYWORD1	MQ6
-MQ7		KEYWORD1	MQ7
-MQ8		KEYWORD1	MQ8
-MQ9		KEYWORD1	MQ9
-MQ135 KEYWORD1  MQ135
+MQ2     KEYWORD1    MQ2
+MQ3     KEYWORD1    MQ3
+MQ4     KEYWORD1    MQ4
+MQ5     KEYWORD1    MQ5
+MQ6     KEYWORD1    MQ6
+MQ7     KEYWORD1    MQ7
+MQ8     KEYWORD1    MQ8
+MQ9     KEYWORD1    MQ9
+MQ135   KEYWORD1    MQ135
 
 #######################################
 # Methods and Functions (KEYWORD2)
 #######################################
 calibrate           KEYWORD2
-heaterPwrHigh		    KEYWORD2
-heaterPwrLow		    KEYWORD2
-heaterPwrOff		    KEYWORD2
-cycleHeat			      KEYWORD2
-atHeatCycleEnd		  KEYWORD2
-heatingCompleted	  KEYWORD2
-coolanceCompleted	  KEYWORD2
-readRatio			      KEYWORD2
-isCalibrated		    KEYWORD2	
-getRo				        KEYWORD2
-readLPG				      KEYWORD2
-readMethane			    KEYWORD2
-readSmoke			      KEYWORD2
-readHydrogen		    KEYWORD2
-readAlcoholMgL		  KEYWORD2
-readAlcoholPpm		  KEYWORD2
+heaterPwrHigh       KEYWORD2
+heaterPwrLow        KEYWORD2
+heaterPwrOff        KEYWORD2
+cycleHeat           KEYWORD2
+atHeatCycleEnd      KEYWORD2
+heatingCompleted    KEYWORD2
+coolanceCompleted   KEYWORD2
+readRatio           KEYWORD2
+isCalibrated        KEYWORD2
+getRo               KEYWORD2
+readLPG             KEYWORD2
+readMethane         KEYWORD2
+readSmoke           KEYWORD2
+readHydrogen        KEYWORD2
+readAlcoholMgL      KEYWORD2
+readAlcoholPpm      KEYWORD2
 readCarbonMonoxide  KEYWORD2
-readCO2				      KEYWORD2
+readCO2             KEYWORD2