Fix some doc issues

docs/courses/ucp-science/temperature/setup-procedure.md

@@ -108,7 +108,6 @@ In the ``||radio:on radio received||`` event, the temperature is received from s
 let temperature = 0
 basic.showString("TEMPERATURE RADIO RECEIVER")
 radio.setGroup(99)
-let temperature = 0
 radio.onDataPacketReceived( ({ receivedNumber: temperature }) =>  {
     basic.showNumber(temperature)
 })

docs/device/reactive.md

@@ -142,7 +142,7 @@ Through this example, we have seen that the micro:bit scheduler enables you to c
 As a result, you can easily add a new capability to the micro:bit by just adding a new subprogram. For example, if you want to add a reset feature to the counter program, all you need to do is add a new event handler for a press of button B that sets the global variable "count" to zero, as shown below:
 
 ```typescript
-export function countButtonPressesWithReset() {
+function countButtonPressesWithReset() {
     let count = 0
     input.onButtonPressed(Button.A, () => {
         count = count + 1

docs/lessons/glowing-pendulum/quiz-answers.md

@@ -21,7 +21,7 @@ We are creating a forever loop to constantly display the appropriate brightness
 <br/>
 
 ```blocks
-let acceleration = input.acceleration("y")
+let acceleration = input.acceleration(Dimension.Y)
 ```
 
 ## 3. After storing the acceleration in a variable, write the code to take the absolute value of the acceleration, and store this value inside 'acceleration'.

docs/lessons/zoomer/quiz-answers.md

@@ -15,7 +15,7 @@ Write the line of code to measure the acceleration and then store in it a variab
 <br/>
 
 ```blocks
-let accX = input.acceleration("x")
+let accX = input.acceleration(Dimension.X)
 ```
 
 Note: acceleration does not have be measured in the "x" direction. It can also be in the "y" or "z" direction.
@@ -27,7 +27,7 @@ After storing the acceleration in a variable, write the code to show acceleratio
 <br/>
 
 ```blocks
-let accX = input.acceleration("x")
+let accX = input.acceleration(Dimension.X)
 basic.showNumber(accX, 150)
 ```
 

docs/projects/karel.md

@@ -96,6 +96,7 @@ Thanks for playing with Karel the LED!
 Copy this code into the JavaScript editor and then download it to the board.
 
 ```typescript
+const board = new Board();
 /**
  * Karel the LED
  */
@@ -132,7 +133,6 @@ function updateLeds() {
         }
     }
 }
-const board = new Board();
 enum Direction {
     UP = 0,
     LEFT,

docs/reference/pins/analog-pitch.md

@@ -15,7 +15,7 @@ pins.analogPitch(440, 300)
 ## Example
 
 ```blocks
-pins.analogSetPitchPin("P0")
+pins.analogSetPitchPin(AnalogPin.P0);
 let frequency1 = 440
 let duration = 1000
 pins.analogSetPitchPin(AnalogPin.P1);