deleted redundant analog in example and corrected typos in comments for analog examples

build/shared/examples/3.Analog/AnalogInSerial/AnalogInSerial.pde

@@ -1,31 +0,0 @@
-/*
-  Analog input, serial output
- 
- Reads an analog input pin, prints the results to the serial monitor.
- 
- The circuit:
-
- * potentiometer connected to analog pin 0.
-   Center pin of the potentiometer goes to the analog pin.
-   side pins of the potentiometer go to +5V and ground
- 
- created over and over again
- by Tom Igoe and everyone who's ever used Arduino
- 
- This example code is in the public domain. It's practically in the collective unconscious by now too.
- 
- */
- 
- void setup() {
-  Serial.begin(9600); 
- }
- 
- void loop() {
-  // read the analog input into a variable:
-   int analogValue = analogRead(A0);
-   // print the result:
-   Serial.println(analogValue);
-   // wait 10 milliseconds for the analog-to-digital converter
-   // to settle after the last reading:
-   delay(10);
- }

build/shared/examples/3.Analog/Calibration/Calibration.pde

@@ -1,14 +1,14 @@
 /*
   Calibration
  
- Demonstrates one techinque for calibrating sensor input.  The
+ Demonstrates one technique for calibrating sensor input.  The
  sensor readings during the first five seconds of the sketch
  execution define the minimum and maximum of expected values
  attached to the sensor pin.
  
- The sensor minumum and maximum initial values may seem backwards.
+ The sensor minimum and maximum initial values may seem backwards.
  Initially, you set the minimum high and listen for anything 
- lower, saving it as the new minumum. Likewise, you set the
+ lower, saving it as the new minimum. Likewise, you set the
  maximum low and listen for anything higher as the new maximum.
  
  The circuit:
@@ -27,13 +27,13 @@
  */
 
 // These constants won't change:
-const int sensorPin = A0;     // pin that the sensor is attached to
+const int sensorPin = A0;    // pin that the sensor is attached to
 const int ledPin = 9;        // pin that the LED is attached to
 
 // variables:
 int sensorValue = 0;         // the sensor value
-int sensorMin = 1023;  // minimum sensor value
-int sensorMax = 0;     // maximum sensor value
+int sensorMin = 1023;        // minimum sensor value
+int sensorMax = 0;           // maximum sensor value
 
 
 void setup() {