Provide example use of yield keyword
Provide example use of yield keyword

ckwong93/ckwong93.github.io,elliedori/phase-0-tracks,ghwilley/phase-0-tracks,ckwong93/ckwong93.github.io,LucasEWright/phase-0-tracks,elliedori/phase-0-tracks,elliedori/phase-0-tracks,ghwilley/phase-0-tracks,LucasEWright/phase-0-tracks,caitlinlikesrobots/phase-0-tracks,caitlinlikesrobots/phase-0-tracks,LucasEWright/phase-0-tracks,caitlinlikesrobots/phase-0-tracks,ghwilley/phase-0-tracks