Hi, maybe it would be nice to provide more documentation examples and information about default values.
For example I created this config:

---version:"2"plugins:duplication:enabled:trueconfig:languages:        -javascriptchecks:mass_threshold:50similar-code:config:threshold:60identical-code:config:threshold:40

And its raise some questions:

• is it correct?
• why we can't setidentical-code: 60 withoutconfig: andthreshold:?
• can I setmass_threshold: underchecks:?
• is my config only allow javascript language?

Also maybe it would be really cool to have a way to visually see the threshold level impact with a code example. Something like code block (default, but with a way to paste your own), a couple of sliders and a result. What do you think, can it be useful?

Regards. Anton.