Add initial content to test.md

[sfkcvk]

closes #6

[teknodemi-github-app]

github.pr_review.premium_title

github.pr_review.premium_description

github.pr_review.premium_upgrade_intro

• github.pr_review.premium_feature_ai_reviews
• github.pr_review.premium_feature_suggestions
• github.pr_review.premium_feature_validation
• github.pr_review.premium_feature_monthly

github.pr_review.premium_upgrade_link

[Copilot]

Pull request overview

This PR creates a new markdown file test.md with minimal initial content to close issue #6. The file appears to be for testing purposes within the repository.

Key changes:

• Creates new file test.md with a single line containing the word "testing"

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