Add more snippet types for better detection

docs/reference/basic/show-animation.md

@@ -23,7 +23,7 @@ In this animation, each row is 15 spaces wide because
 there are three frames in the animation, and each frame is
 five spaces wide, just like the screen on the BBC micro:bit.
 
-```
+```blocks
 basic.showAnimation(`
 . . # . . . # # # . . # # # .
 . # # . . . . . # . . . . # .
@@ -47,7 +47,7 @@ In this animation, each row is 30 spaces wide because
 there are six frames in the animation, and each frame is
 five spaces wide, just like the screen.
 
-```
+```blocks
 basic.showAnimation(`
 . . . . . # . . . . . . . . . . . . . # . . . . . # . . . .
 . . # . . . . . . . . . # . . . . . . . . . # . . . . . . .

docs/reference/devices/on-signal-strength-changed.md

@@ -23,7 +23,7 @@ devices.onSignalStrengthChanged(() => {})
 
 Display the signal strength on screen:
 
-```
+```blocks
 devices.onSignalStrengthChanged(() => {
     basic.showNumber(devices.signalStrength(), 150)
 })

docs/reference/game/clear.md

@@ -6,7 +6,7 @@ Turn off all the pixels in an [Image](/reference/images/image).
 
 ### JavaScript
 
-```
+```sig
 export function clear(img: micro_bit.Image)
 ```
 
@@ -18,7 +18,7 @@ export function clear(img: micro_bit.Image)
 
 The following example turns off the pixels of `img` when the A input button is pressed:
 
-```
+```blocks
 let img = images.createImage(`
 . . . . .
 . # # # .

docs/reference/game/position.md

@@ -2,12 +2,12 @@
 
 Reports the x position of a sprite on the LED screen
 
-```
+```sig
 export function x(_this: micro_bitSprites.LedSprite) : number
 ```
 
 Reports the y position of a sprite on the LED screen
 
-```
+```sig
 export function y(_this: micro_bitSprites.LedSprite) : number
 ```

docs/reference/game/reports.md

@@ -4,24 +4,24 @@ Reports the x or y position,  the current direction of a sprite, or the brightne
 
 Reports the x position of a sprite on the LED screen
 
-```
+```sig
 export function x(_this: micro_bitSprites.LedSprite) : number
 ```
 
 Reports the y position of a sprite on the LED screen
 
-```
+```sig
 export function y(_this: micro_bitSprites.LedSprite) : number
 ```
 
 Reports the brightness of a sprite on the LED screen
 
-```
+```sig
 export function brightness(_this: micro_bitSprites.LedSprite) : number
 ```
 
 Reports the current direction of a sprite on the LED screen
 
-```
+```sig
 export function direction(_this: micro_bitSprites.LedSprite) : number
 ```

docs/reference/images/pixel.md

@@ -6,7 +6,7 @@ Get the state of a pixel in an [Image](/reference/images/image).
 
 ### JavaScript
 
-```
+```sig
 export function pixel(_this: micro_bit.Image, x: number, y: number) : boolean
 ```
 
@@ -29,7 +29,7 @@ This example gets the state of pixel `0, 0` in the `img` variable:
 
 ### ~hide
 
-```
+```blocks
 let img = images.createImage(`
 . . # . . . . . . .
 . # . # . . . # . .
@@ -41,7 +41,7 @@ let img = images.createImage(`
 
 ### ~
 
-```
+```blocks
 let state = img.pixel(0, 0)
 ```
 

docs/reference/images/show-frame.md

@@ -6,7 +6,7 @@ Display an [Image](/reference/images/image) on the BBC micro:bit's [LED screen](
 
 ### JavaScript
 
-```
+```sig
 export function showFrame(img: micro_bit.Image, frame: number)
 ```
 
@@ -20,7 +20,7 @@ The `show frame` function is the same as [plot frame](/reference/images/plot-fra
 
 ### Example
 
-```
+```blocks
 let img = images.createImage(`
 # . . . # # . . . #
 . # . # . . # # # .

docs/reference/images/width.md

@@ -20,7 +20,7 @@ The following example gets the width of `img` and stores it in the `w` variable:
 
 ### ~hide
 
-```
+```blocks
 let img = images.createImage(`
 . . # . . . . . . .
 . # . # . . . # . .
@@ -32,7 +32,7 @@ let img = images.createImage(`
 
 ### ~
 
-```
+```blocks
 let w = img.width()
 ```
 
@@ -40,7 +40,7 @@ let w = img.width()
 
 The following example uses the `width` function with a [for](/blocks/loops/for) loop to show each image frame on the screen:
 
-```
+```blocks
 let img2 = images.createImage(`
 . . # . . . # # # # . # # # .
 . # # . . . . . . # . . . # .

docs/reference/pins/analog-pitch.md

@@ -13,7 +13,7 @@ pins.analogPitch(440, 300)
 
 ### Example
 
-```
+```blocks
 pins.analogSetPitchPin("P0")
 let frequency1 = 440
 let duration = 1000

docs/reference/pins/analog-set-pitch-pin.md

@@ -12,7 +12,7 @@ pins.analogSetPitchPin(AnalogPin.P0)
 
 ### Example
 
-```
+```blocks
 pins.analogSetPitchPin(AnalogPin.P0)
 let frequency = 440
 let duration = 1000