[Bug] Ambiguous VS Code branch menu instructions and screenshot order in Step 5, Activity 2 #30

Summary

In Step 5, Activity 2, the merge and delete branch instructions reference a three-dot menu without specifying which menu to use. VS Code includes multiple three-dot menus, so learners may select the wrong menu.

Affected content

• Branch name input appears after the screenshot example:
  

  introduction-to-git/.github/steps/5-step.md

  Lines 250 to 256 in 8c07c56

  	1. Select the **Create new branch...** option and use the below name.
  	<img width="350px" src="https://github.com/user-attachments/assets/d3f26f30-3f8f-4cbb-8fb2-5754838b0fdf"/>
  	```txt
  	add-level-counter
  	```

• Merge branch instruction references an unspecified three-dot menu:
  

  introduction-to-git/.github/steps/5-step.md

  Lines 328 to 330 in 8c07c56

  	1. Click the three dot menu (`...`), then `Branch`, and select `Merge...`. Notice it performed a normal **Fast Forward** style merge.
  	<img width="350px" src="https://github.com/user-attachments/assets/7b21ad36-5012-4fb2-a30a-c02a5884ea52"/><br/>

• Delete branch instruction references an unspecified three-dot menu:
  

  introduction-to-git/.github/steps/5-step.md

  Lines 336 to 338 in 8c07c56

  	1. Click the three dot menu (`...`), then `Branch`, and select `Delete Branch...`.
  	<img width="350px" src="https://github.com/user-attachments/assets/7b21ad36-5012-4fb2-a30a-c02a5884ea52"/><br/>

Suggested update

Identify the correct menu location and update the related screenshot for clarity.