Fix docs for `add-property` bif. Closes #1721
Fix docs for `add-property` bif. Closes #1721

modulexcite/stylus,jangarcia/stylus,Zagorakiss/stylus,stylus/stylus,jameswomack/stylus,angryrobot/stylus,Ricardh522/stylus,meteor/stylus,HossainKhademian/Stylus,ThiagoGarciaAlves/stylus,cemoulto/stylus,yetone/stylus,trixter5/stylus,johnnycopperstone/stylus,behzad88/stylus,jonpacker/stylus,SimenB/stylus,baotingfang/stylus,galenvagen/stylus,silvaemota/stylus,tyv/stylus,Delapouite/stylus,peterkinalex/stylus-1,PeterWangPo/stylus,a-x-/stylus