Add examples using external image urls
Add examples using external image urls

jflournoy/jflournoy.github.io,sims1253/sims1253.github.io,dvse/dvse.github.io,clayh53/tufte-jekyll,potash/potash.github.io,potash/potash.github.io,annie-mouse-psychosis/annie-mouse-psychosis.github.io,heirloompixels/tufte-jekyll,DanBennettDev/danbennettdev.github.io,clayh53/tufte-jekyll,annie-mouse-psychosis/annie-mouse-psychosis.github.io,potash/potash.github.io,DanBennettDev/danbennettdev.github.io,compsciguru/compsciguru.github.io,dvse/dvse.github.io,sims1253/sims1253.github.io,heirloompixels/tufte-jekyll