Update README.md

README.md

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 # 🖼️ FrauJulian's Portfolio Website
 
 ### [🙋‍♂️ Website Preview](https://fraujulian.xyz/)
+![grafik](https://github.com/user-attachments/assets/65f1e491-62ab-4b16-a39c-5f04377ce5cb)
 
 ## 👂 Languages/Framework/Packages:
-- Javascript
+- Angular v19
-- CSS
+- TypeScript
-- HTML
+- SCSS
+
+## 💻 Development
+
+### Development Preview
+
+```bash
+npm run dev
+```
+
+### Building
+
+```bash
+npm run buildDevelopment 
+```
+
+or for Production Build
+
+```bash
+npm run buildProduction
+```
+
+This will compile your project and store the build artifacts in the `dist/` directory. By default, the production build optimizes your application for performance and speed.
+
+### Start compiled Project
+
+```bash
+npm run start 
+```
+
+## Running unit tests
+
+To execute unit tests with the [Karma](https://karma-runner.github.io) test runner, use the following command:
+
+```bash
+nom run test
+```
+
+## Update Packages/Libraries
+
+```bash
+updatePackageVersions
+```
 
 ## 📋 Credits:
 ~ made by [**FrauJulian**](https://fraujulian.xyz/).