Update README.md

README.md

 
 `radangel --verbose --event events.tsv --stats stats.tsv`
 
-The daemon can be run as service with the `radangel.service` systemd file.
+The daemon can be run as service with help of the `radangel.service` systemd file.
 
 ## Web: service
 
 
 The web interface itself uses [Plotly.js](https://plot.ly/javascript/) to display the histogram of the channels in realtime by connecting to the websocket endpoint and provides a convenient user interface for exploring the details of the gamma-spectrum.
 
-![Background Gamma Spectrum](docs/background-gamma-spectrum.png)
+![Background Gamma Spectrum](docs/background-gamma-spectrum.png)