added documentation in addtest.js
added documentation in addtest.js

SlackingPalico/CodeFighter,murmurs/CodeFighter,codeCommode/TheFourLoops,ccheung0926/TheFourLoops,ccheung0926/TheFourLoops,a-nguyen/CodeFighter,murmurs/CodeFighter,TheFourLoops/TheFourLoops,Way2nnadi/CodeFighter,jkf91/CodeFighter,SlackingPalico/CodeFighter,jkf91/CodeFighter,a-nguyen/CodeFighter,Way2nnadi/CodeFighter,TheFourLoops/TheFourLoops,codeCommode/TheFourLoops