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diff --git a/worksheet2.md b/worksheet2.md
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--- a/worksheet2.md
+++ b/worksheet2.md
@@ -6,17 +6,17 @@ With the hardware set up, we can begin to program the software that will make ev
 
 1. To begin, open the file explorer, then right click on a blank space inside the file explorer window.
 
-  ![File Explorer](images/file-explorer.png)
+    ![File Explorer](images/file-explorer.png)
 
 1. Select `Create new` and then click `Folder`
 
-  ![Create folder menu](images/create-folder.png)
+    ![Create folder menu](images/create-folder.png)
 
 1. Type in the name of the folder where you will store the code and the photographs. We chose to call ours `allseeingpi`. Make a note of the path to this folder which is displayed in the bar at the top, which should be `/home/pi/allseeingpi`
 
 1. From the "Programming" menu, open up "Python 3"
 
-  ![Open Python 3](images/python3-app-menu.png)
+    ![Open Python 3](images/python3-app-menu.png)
 
 1. Create a new Python file by clicking on `File` > `New File`.
 
@@ -24,23 +24,23 @@ With the hardware set up, we can begin to program the software that will make ev
 
 1. We will need the `gpiozero` library. At the start of your Python file add an import statement:
 
-  ```python
-  from gpiozero import Button
-  ```
+    ```python
+    from gpiozero import Button
+    ```
 
 1. Next we will set up the buttons. On the [previous worksheet](worksheet.md) we wired our buttons to pins 23 and 25. Let's go ahead and set both buttons up.
 
-  ```python
-  next_overlay_btn = Button(23)
-  take_pic_btn = Button(25)
-  ```
+    ```python
+    next_overlay_btn = Button(23)
+    take_pic_btn = Button(25)
+    ```
 
 1. Now we will use gpiozero to tell the buttons what to do when pressed. In the code below, `next_overlay` and `take_picture` are functions which will be called when the corresponding button is pressed:
 
-  ```python
+    ```python
     next_overlay_btn.when_pressed = next_overlay
     take_pic_btn.when_pressed = take_picture
-  ```
+    ```
 
 1. We will write these two functions so that the buttons know what to do when they are pressed. Functions are usually written at the start of a program immediately after the `import` statements. Add the functions, but with some placeholder code to just print a message when they are pressed, so we can test them.
 
@@ -50,7 +50,7 @@ With the hardware set up, we can begin to program the software that will make ev
 
     def take_picture():
         print("Take a picture")
-  ```
+    ```
 
 1. Press `F5`, save and run your program. Try pressing each button and check that a different message pops up for each in the Python shell.