put lessons back for Michael

docs/lessons/game-counter/activity.md

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+# game counter activity
+
+Have you ever tried to create a game counter? The concept is fairly simply: increase the game `score` with `on button pressed` .
+
+Let's start by adding `on button (A) pressed` will run each time the user presses A. Let's add a line of code that increments `score` by `1`.
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    game.addScore(1);
+});
+```
+
+
+Let's add a `add points to score` block to keep track of the current count. Since the count will change with the `add points to score` blocks, add a game block `score` to display the count on screen.
+
+
+
+```blocks
+input.onButtonPressed(Button.A, () => {
+    game.addScore(1);
+    basic.showNumber(game.score())
+});
+```
+
+
+
+### ~avatar boothing
+
+Excellent, you're ready to continue with the [challenges](/lessons/game-counter/challenges)!
+
+### ~
+