Correct typos in comments and documentation

Author: per1234

examples/ReadSensors/ReadSensors.ino

@@ -1,7 +1,7 @@
 /*
   MKR ENV Shield - Read Sensors
 
-  This example reads the sensors on-board the MKR ENV shield
+  This example reads the sensors on-board the MKR ENV Shield
   and prints them to the Serial Monitor once a second.
 
   The circuit:
@@ -18,7 +18,7 @@ void setup() {
   while (!Serial);
 
   if (!ENV.begin()) {
-    Serial.println("Failed to initialize MKR ENV shield!");
+    Serial.println("Failed to initialize MKR ENV Shield!");
     while (1);
   }
 }

examples/ReadSensorsImperial/ReadSensorsImperial.ino

@@ -1,7 +1,7 @@
 /*
   MKR ENV Shield - Read Sensors Imperial
 
-  This example reads the sensors on-board the MKR ENV shield
+  This example reads the sensors on-board the MKR ENV Shield
   and prints them in imperial units to the Serial Monitor once a second.
 
   The circuit:
@@ -18,7 +18,7 @@ void setup() {
   while (!Serial);
 
   if (!ENV.begin()) {
-    Serial.println("Failed to initialize MKR ENV shield!");
+    Serial.println("Failed to initialize MKR ENV Shield!");
     while (1);
   }
 }

library.properties

@@ -2,7 +2,7 @@ name=Arduino_MKRENV
 version=1.2.0
 author=Arduino
 maintainer=Arduino <[email protected]>
-sentence=Allows you to read the temperature, humidity, pressure, light and UV sensors of your MKR ENV shield.
+sentence=Allows you to read the temperature, humidity, pressure, light and UV sensors of your MKR ENV Shield.
 paragraph=
 category=Sensors
 url=http://github.com/arduino-libraries/Arduino_MKRENV

src/MKRENV.cpp

@@ -163,7 +163,7 @@ float ENVClass::readPressure(int units)
           (i2cRead(LPS22HB_ADDRESS, LPS22HB_PRESS_OUT_L_REG) << 8) | 
           (i2cRead(LPS22HB_ADDRESS, LPS22HB_PRESS_OUT_H_REG) << 16)) / 40960.0;
 
-  if (units == MILLIBAR) { // 1 kPa = 10 MILLIBAR
+  if (units == MILLIBAR) { // 1 kPa = 10 millibar
     return reading * 10;
   } else if (units == PSI) {  // 1 kPa = 0.145038 PSI
     return reading * 0.145038;
@@ -178,15 +178,15 @@ float ENVClass::readIlluminance(int units)
   float mV = (analogRead(_lightSensorPin) * 3300.0) / 1023.0;
 
   // 5 mV per lux
-  float reading = (mV / 5.0); // Readings are in Lux scale
-  if (units == FOOTCANDLE) { // 1 Lux = 0.092903 Foot-Candle
+  float reading = (mV / 5.0); // Readings are in lux scale
+  if (units == FOOTCANDLE) { // 1 lux = 0.092903 foot-candle
     return reading * 0.092903;
   } else {
-    return reading; // 1 Lux = 1 Meter-Candle
+    return reading; // 1 lux = 1 meter-candle
   }
 }
 
-// UV formula's and constants based on:
+// UV formulas and constants based on:
 //   https://www.vishay.com/docs/84339/designingveml6075.pdf
 
 float ENVClass::readUVA()