Update part4-custom-instructions.md

Author: jamesmontemagno

lab/part4-custom-instructions.md

@@ -39,11 +39,14 @@ Here are some guidelines to consider when creating a Copilot instructions file:
     - UI should have a modern look and feel.
     - CSS should be in .razor.css files.
     ```
+3. Start a new chat by clicking the `+` icon in the top right corner of the chat window.
 
-3. [] Go back to Copilot Chat and re-run the prompt from Part 3, you can do this by pressing the up key. or
+   ![New chat](./images/5-new-edits.png)
+
+4. [] Go back to Copilot Chat and re-run the prompt from Part 3, you can do this by pressing the up key. or
     i. [] Ask: `How would I implement getting and visualizing the products in a table using the code in #ProductService and the css required.`
     i. [] Review the code suggestion but don't implement it yet.
     i. [] Follow up with: `How would this look in a grid instead of a list?`
-4. [] Notice how the responses now incorporate your custom instructions.
+5. [] Notice how the responses now incorporate your custom instructions.
 
 **Key Takeaway**: Custom instructions make Copilot's suggestions more aligned with your project standards and architecture preferences.