Error in displaying the results in the grafana dashboard

[kaerbr]

Describe the bug
I'm using your speedtest-exporter which works fine! (:
Unfortunately the dashboard which is mentioned at the end of the README.md seems to have a bug?!

• Colums like server_name or server_id or distance are 3 times in the table.
• Download, Upload and Latency are marekd as NaN.

To Reproduce

1. I am running the exporter via docker as mentioned in the readme: docker run --name speedtest-exporter --hostname speedtest-exporter ghcr.io/danopstech/speedtest_exporter:latest (I am running prometheus, grafana and all exporters i use in the same network. Therefore I dont have to expose any ports to the host)
2. : The prometheus configuration is as follows

- job_name: speedtest-exporter
    scrape_interval: 30m
    scrape_timeout: 1m
    static_configs:
      - targets: ['speedtest-exporter:9090']

Expected behavior

• Colums like server_name or server_id or distance should only be displayed 1 time.
• Download, Upload and Latency are marekd as should be the values which are display at the top

Screenshots

Additional context

• OS: Armbian 21.08.1 Bullseye with Linux 5.10.63-rockchip64 (nanopi neo3)
• ghcr.io/danopstech/speedtest_exporter:latest (v.0.0.5)

Unfortunately I do not know how to edit or create dashboards in grafana.

I hope you can help me!
Many many thanks in advance! (: