Update documentation

Author: PowerBroker2

README.md

@@ -66,6 +66,93 @@ void loop()
 }
 ```
 
+# List of Supported OBD PID Processing Functions:
+```C++
+uint32_t supportedPIDs_1_20();
+
+uint32_t monitorStatus();
+uint16_t freezeDTC();
+uint16_t fuelSystemStatus();
+float engineLoad();
+float engineCoolantTemp();
+float shortTermFuelTrimBank_1();
+float longTermFuelTrimBank_1();
+float shortTermFuelTrimBank_2();
+float longTermFuelTrimBank_2();
+float fuelPressure();
+uint8_t manifoldPressure();
+float rpm();
+int32_t kph();
+float mph();
+float timingAdvance();
+float intakeAirTemp();
+float mafRate();
+float throttle();
+uint8_t commandedSecAirStatus();
+uint8_t oxygenSensorsPresent_2banks();
+uint8_t obdStandards();
+uint8_t oxygenSensorsPresent_4banks();
+bool auxInputStatus();
+uint16_t runTime();
+
+
+uint32_t supportedPIDs_21_40();
+
+uint16_t distTravelWithMIL();
+float fuelRailPressure();
+float fuelRailGuagePressure();
+float commandedEGR();
+float egrError();
+float commandedEvapPurge();
+float fuelLevel();
+uint8_t warmUpsSinceCodesCleared();
+uint16_t distSinceCodesCleared();
+float evapSysVapPressure();
+uint8_t absBaroPressure();
+float catTempB1S1();
+float catTempB2S1();
+float catTempB1S2();
+float catTempB2S2();
+
+
+uint32_t supportedPIDs_41_60();
+
+uint32_t monitorDriveCycleStatus();
+float ctrlModVoltage();
+float absLoad();
+float commandedAirFuelRatio();
+float relativeThrottle();
+float ambientAirTemp();
+float absThrottlePosB();
+float absThrottlePosC();
+float absThrottlePosD();
+float absThrottlePosE();
+float absThrottlePosF();
+float commandedThrottleActuator();
+uint16_t timeRunWithMIL();
+uint16_t timeSinceCodesCleared();
+float maxMafRate();
+uint8_t fuelType();
+float ethonolPercent();
+float absEvapSysVapPressure();
+float evapSysVapPressure2();
+float absFuelRailPressure();
+float relativePedalPos();
+float hybridBatLife();
+float oilTemp();
+float fuelInjectTiming();
+float fuelRate();
+uint8_t emissionRqmts();
+
+
+uint32_t supportedPIDs_61_80();
+
+float demandedTorque();
+float torque();
+uint16_t referenceTorque();
+uint16_t auxSupported();
+```
+
 # List of OBD Protocols:
 ```C++
 const char AUTOMATIC                  = '0';