updated readme with deployment

Save to reload and chekc the change on

* [http://localhost:3000](http://localhost:3000)

## Deployment

### Step 1) Configuration

For more information on the deployment see, e.g.,

* [Create react app: Available scripts](https://create-react-app.dev/docs/available-scripts)

* [Create react app: Deployment](https://create-react-app.dev/docs/deployment)

For building for relative paths, i.e., for deployment on a relative path ([see](https://create-react-app.dev/docs/deployment#building-for-relative-paths)), an entry for the homepage has to be added to the `package.json` file.

For the deployment as part of the gitlab page of this repository the following entry is used,

```json

  "homepage": "https://mmoessler.aidaho-pages.uni-hohenheim.de/aidaho-tinkering-club-web-app/react-build/",

```

### Step 2) Build the react app

Start and enter the node container

```bash

docker run -it --rm -v $(pwd)/react-frontend/my-react-app:/app -w /app node:16 bash

```

Build the react app

```bash

# build application

npm run build

```

This cerates the directory `./react-frontend/my-react-app/build`  with all neccessary files for a static deployment.

The directory contains the following files for example,

```bash

.

├── asset-manifest.json

├── favicon.ico

├── index.html

├── logo192.png

├── logo512.png

├── manifest.json

├── robots.txt

└── static

    ├── css

    │   ├── main.f855e6bc.css

    │   └── main.f855e6bc.css.map

    ├── js

    │   ├── 488.103417aa.chunk.js

    │   ├── 488.103417aa.chunk.js.map

    │   ├── main.27d96172.js

    │   ├── main.27d96172.js.LICENSE.txt

    │   └── main.27d96172.js.map

    └── media

        └── logo.6ce24c58023cc2f8fd88fe9d219db6c6.svg

```

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