Update README.md

Author: ThatGuyNick05

README.md

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 # Workflow-Testing
+
+![CI](https://github.com/ThatGuyNick05/Workflow-Testing/actions/workflows/ci.yml/badge.svg)
+
+This repository exists purely as a demonstration of an integrated development workflow.
+It's made to be intentionally  minimal, focusing on CI integration and development tooling rather than the application.
+
+---
+
+## 🛠 Tech Stack
+
+- **Language:** TypeScript
+- **Testing:** Jest
+- **Linting:** ESLint (`@typescript-eslint`)
+- **Formatting:** Prettier
+- **CI:** GitHub Actions
+
+---