Add skills plugin to awesome copilot

[kvenkatrajan]

For discoverability purposes and addition to vscode skills marketplace, add external link to awesome copilot

[kvenkatrajan]

github/awesome-copilot#880
github/awesome-copilot#876

[github-actions]

Thanks for opening this issue, @kvenkatrajan! 🙌

This has been labeled as an enhancement since it's a request to improve discoverability by adding the skills plugin to the awesome copilot list. The skills label has also been applied given the direct relation to the skills plugin. No additional skill-area or assign-to-copilot labels were added, as this work involves an external submission rather than a code change in this repository.

Generated by Issue Triage for issue #1153