It's more like PoC, and I'm not sure if netdata is good for dump1090 at all, as dump1090 stats are not realtime. If you want really working graphs - see graphs1090.
Copy dump*.chart.py to /usr/libexec/netdata/python.d/ and dump*.conf to /etc/netdata/python.d/. Restart netdata sudo systemctl restart netdata.
In short:
git clone --depth 1 --branch devel https://github.com/varnav/dump1090-netdata.git
sudo cp dump1090-netdata/dump1090.chart.py /usr/libexec/netdata/python.d/
sudo cp dump1090-netdata/dump1090.conf /etc/netdata/python.d/
sudo cp dump1090-netdata/dump978.chart.py /usr/libexec/netdata/python.d/
sudo cp dump1090-netdata/dump978.conf /etc/netdata/python.d/
sudo systemctl restart netdata