Attribution extension

Hi Robert,
The right bottom of my map shows an attribution line with the following content:
MapsMarker.com (Leaflet/icons/QR) — MapBox/NASA, http://www.mapbox.com
How can I add my own website link in there, so that it looks like this in the end?
MapsMarker.com (Leaflet/icons/QR) — http://www.mywebsite.com — MapBox/NASA, http://www.mapbox.com
Cheers,
Michaela

https://ww.wp.xz.cn/plugins/leaflet-maps-marker/