feat: 초기 프로젝트 설정 및 룰.md 파일 추가

api.hyungi.net/node_modules/tx2/README.md

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+
+## tx2
+
+Report Events, Metrics, Issues, Actions to PM2 and PM2.io.
+
+```javascript
+const tx2 = require('tx2')
+
+let body = { calories : 20 }
+tx2.metric('burnt calories', () => body.calories)
+
+tx2.action('lift weights', (cb) => {
+  cb({ success: true })
+})
+```
+
+Check [API.md](API.md) for full API doc.
+
+Once you have created some metrics:
+
+```bash
+$ pm2 start app.js
+```
+
+Then run:
+
+```bash
+# Inspect primitive reported
+$ pm2 show app
+```
+
+or go to pm2.io for web based interface + insights creation.
+
+## More
+
+Generate documentation:
+
+```bash
+$ npm run doc
+```
+
+## License
+
+MIT