Please make/document the use of plugins clear

[SharkFourSix]

I had google and scour around on how to include the image plugin, or any of the plugins really. I could not find any documentation detailing how to do that. I accidentally ended up clicking on this

which took me to the maven page. Only then did it make sense.

implementation "io.noties.markwon:image:${markwonVersion}"

Please document this properly