[WIP] Create a skillmap for 3-in-a-Row game

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

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This section details on the original issue you should resolve

<issue_title>Create a 3-in-a-Row Skillmap</issue_title>
<issue_description>Create a skillmap for a 3-in-a-Row game for MakeCode Arcade. This skillmap contains 3 tutorials.
Attaching the following files:

• Set of 3 markdown tutorial files which should be placed in /docs/skillmap/3-in-a-row
  3-in-a-row1.md
  3-in-a-row2.md
  3-in-a-row3.md

• Tutorial and skillmap assets which should be placed in /docs/static/skillmap/3-in-a-row
  
  
  
  

• Skillmap markdown file which should be placed in /docs/skillmap
  3-in-a-row.md

• Skillmap background which should be placed in /docs/static/skillmap/backgrounds
  

• Certificate assets which should be placed in /docs/static/skillmap/certificates

[3-in-a-row-cert.pdf](https://github.com/user-attachments/files/25829759/3-in-a-row-cert.pdf)

• Badge assets which should be placed in /docs/static/badges

• Learning Outcomes educator information markdown page place in /docs/skillmap/educator-info
  3-in-a-row-info.md
  </issue_description>

<agent_instructions>Create a new skillmap, and provide a means to test it out.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

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