finished updated lessons

docs/lessons/counter/quiz.md

@@ -16,7 +16,7 @@ Answer the questions while completing the tutorial. Pay attention to the dialogu
 
 ## 2. Draw the stored value for the variable called count
 
-```
+```blocks
 let count = 0
 ```
 
@@ -26,7 +26,7 @@ let count = 0
 
 ## 3. Draw which LEDs are ON after running this code and pressing button "A" once. Explain you chose to draw that number
 
-```
+```blocks
 let count_ = 0
 input.onButtonPressed("A", () => {
     count_ = count_ + 1
@@ -40,7 +40,7 @@ input.onButtonPressed("A", () => {
 
 ## 4. Draw which LEDs are ON after running this code and pressing button "A" three times. Explain you chose to draw that number
 
-```
+```blocks
 count_ = 0
 input.onButtonPressed("A", () => {
     count_ = count_ + 1