Update some pictures in Step 4

Author: chriswblake

.github/steps/4-copilot-on-github.md

@@ -6,21 +6,13 @@ Congratulations! You are finished with coding for this exercise. Now it's time t
 
 Typically, you would review your notes and commit messages then summarize them for your pull request description. This may take some time, especially if commit messages are inconsistent or code is not not documented well. Fortunately, Copilot can consider all changes in the pull request and provide the important highlights, and with references too!
 
-Here is what that process looks like:
-
-<!-- Add GIF image here -->
-
 > [!NOTE]  
 > This is a unavailable with the **Copilot Free** tier. [[docs]](https://docs.github.com/en/enterprise-cloud@latest/copilot/using-github-copilot/using-github-copilot-for-pull-requests/creating-a-pull-request-summary-with-github-copilot)
 
 #### Copilot Review
 
 More eyes on our work is always useful so let's ask Copilot to do a first pass before we do a normal peer review process. Copilot is great at catching common mistakes that can are fixed by simple adjustment, but please remember to use it responsibily.
 
-Here is what that process looks like:
-
-<!-- Add GIF image here -->
-
 > [!IMPORTANT]  
 > This is in **Public Preview** for organizations. [[docs]](https://docs.github.com/en/copilot/using-github-copilot/code-review/using-copilot-code-review)
 
@@ -38,14 +30,14 @@ Both **pull request summaries** and **copilot review** have limited access, so t
 
 1. (Optional) In the **Add a description** area, enter edit mode if needed, then click the **Copilot actions** icon and **Summary** action. After a moment, Copilot will add a description. :memo:
 
-   <img alt="Copilot " width="400px" src="https://docs.github.com/assets/cb-42638/mw-1440/images/help/copilot/copilot-description-suggestion.webp">
+   <img alt="Copilot summarize button " width="300px" src="https://github.com/user-attachments/assets/3fc5fab4-db03-4ab8-8a16-cdd71ec2ded0">
 
 1. (Optional) In the right side information panel at the top, locate the **Reviewers** section and click the **Request** button next to a **Copilot icon**. Wait a moment for Copilot to add a review comment to your pull request!
 
-   > **Tip:** Notice a log entry was added to indicate a Copilot review was requested.
+   <img alt="Copilot review button" width="300px" src="https://github.com/user-attachments/assets/39b15002-a235-4c25-b09d-6a8097e27b62">
+   <!-- <img alt="Copilot review comment" height="200px" src="https://docs.github.com/assets/cb-266339/mw-1440/images/help/copilot/code-review/[email protected]"> -->
 
-   <img alt="Copilot " height="230px" src="https://docs.github.com/assets/cb-68049/mw-1440/images/help/copilot/code-review/[email protected]">
-   <img alt="Copilot " height="200px" src="https://docs.github.com/assets/cb-266339/mw-1440/images/help/copilot/code-review/[email protected]">
+   > **Tip:** Notice a log entry that Copilot was requested for a review.
 
 1. At the bottom, press the **Merge pull request** button. Nice work! You are all done! :tada: