removing old 'getting-started' guide

docs/projects/coin-flipper.md

@@ -0,0 +1,74 @@
+# The amazing coin flipper
+
+### ~avatar avatar
+
+Are you trying to choose whether to play soccer or go to the movies
+instead, or which toppings to have on your pizza?  Build a coin
+flipping machine with the @boardname@ to choose for you!
+
+### ~
+
+Here are the blocks to make your coin flipper.  When you press button
+`B`, the coin flipper will show either `H` for heads or `T` for tails
+on the LED screen.
+
+```blocks
+input.onButtonPressed(Button.B, () => {
+    if (Math.randomBoolean()) {
+        basic.showString("H");
+    } else {
+        basic.showString("T");
+    }
+});
+```
+### ~hint
+
+The `[Math.randomBoolean()]` block randomly tells the ``if``
+block `true` or `false`.  If value picked is `true`, the
+``if`` block shows the letter `H`. Otherwise, it shows the letter `T`.
+
+That's it!
+
+### ~
+
+### Keeping score
+
+#### ~avatar
+
+To keep track out of how many guesses you've won,
+add these blocks to your coin flipper:
+
+#### ~
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    game.addScore(1);
+});
+input.onButtonPressed(Button.AB, () => {
+    basic.showNumber(game.score());
+});
+```
+
+These blocks mean that if you press button `A`, you will add `1` to
+your score, and if you press `A` and `B` together, the @boardname@ will
+show your score.
+
+When you're done, your coin flipping program should look like this:
+
+```blocks
+input.onButtonPressed(Button.B, () => {
+    if (Math.randomBoolean()) {
+        basic.showString("H");
+    } else {
+        basic.showString("T");
+    }
+});
+input.onButtonPressed(Button.A, () => {
+    game.addScore(1);
+});
+input.onButtonPressed(Button.AB, () => {
+    basic.showNumber(game.score());
+});
+```
+
+Flip until your thumbs get tired!

docs/projects/smiley-buttons.md

@@ -41,7 +41,7 @@ Try pressing button A!
 
 ## Step 3
 
-Now add blocks so that when [button B is pressed](/reference/input/on-button-pressed), 
+Add blocks so that when [button B is pressed](/reference/input/on-button-pressed), 
 a frowney appears:
 
 ```blocks
@@ -67,6 +67,58 @@ input.onButtonPressed(Button.B, () => {
 
 Try pressing ``A`` or ``B``!
 
+## Step 4
+
+You can also have a secret mode where ``A`` and ``B`` are pressed together. 
+In that case, add multiple ``||show leds||`` blocks to create an animation...
+
+```blocks
+input.onButtonPressed(Button.AB, () => {
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        # . . . #
+        . # # # .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        # # # # #
+        . . . . .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        . # # # .
+        # . . . #
+        `)
+    basic.showLeds(`
+        . . . . .
+        . # . # .
+        . . . . .
+        # # # # #
+        . . . # #
+        `)
+    basic.showLeds(`
+        . . . . .
+        # . # . .
+        . . . . .
+        # . . . #
+        . # # # .
+        `)
+    basic.showLeds(`
+        . . . . .
+        . . # . #
+        . . . . .
+        # . . . #
+        . # # # .
+        `)    
+})
+```
+
 ## Send your smileys over radio
 
 Do you have a second @boardname@ at hand? You could use radio and send your smileys or frownies to other