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README.md

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+# simple-server
+
+A minimal [Express.js](https://expressjs.com/) HTTP server that demonstrates basic routing, including a `GET` endpoint and a `PATCH` endpoint.
+
+---
+
+## Installation
+
+```bash
+npm install
+```
+
+---
+
+## Usage
+
+Start the server (uses [nodemon](https://nodemon.io/) for auto-restart on file changes):
+
+```bash
+npm start
+```
+
+The server listens on **port 7000** by default.
+
+---
+
+## File Descriptions
+
+| File | Description |
+|------|-------------|
+| `index.js` | Main entry point. Creates the Express app, registers routes, and starts the server on port 7000. |
+| `patchHandler.js` | Express router module that handles `PATCH /` requests. |
+| `package.json` | Project metadata and dependency definitions (`express`, `nodemon`). |
+| `test.txt` | A plain-text file containing numbers 1–20, used for testing file-serving or read operations. |
+
+---
+
+## API Endpoints
+
+### `GET /`
+
+Returns a plain-text greeting.
+
+**Response:**
+```
+Hello world!
+```
+
+### `PATCH /`
+
+Logs the incoming request. Handled by `patchHandler.js`.
+
+---
+
+## Project Structure
+
+```
+simple-server/
+├── index.js          # App entry point
+├── patchHandler.js   # PATCH route handler
+├── package.json      # Project configuration
+└── test.txt          # Sample text file (numbers 1–20)
+```