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

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