Batch of fixes from the Lancaster doc review (#451)

* Local commit.

* local commit

* Doc fixes from Lancaster review.

* I don't want to change these yet.

* Trailing newlines, arrr.

* Get the 'Game' cards setup.

* Take block support off of 'show animation'.

* Add 'see also' for showArrow().

docs/reference/led/enable.md

@@ -14,7 +14,7 @@ led.enable(false);
 
 This program turns off the screen when pressing button ``B``
 
-```typescript
+```blocks
 input.onButtonPressed(Button.B, () => {
     led.enable(false)
 });