Adding image to user %Info (#34)
Pretty much all other Ueberauth strategies use image: for purposes of the user avatar. I suggest doing this same with the GitHub strategy, so as to avoid needing to customize the templating for this strategy.
As an example see: these other strategies
LINE 111 in https://github.com/ueberauth/ueberauth_facebook/blob/master/lib/ueberauth/strategy/facebook.ex
LINE 109 in https://github.com/fajarmf/ueberauth_linkedin/blob/master/lib/ueberauth/strategy/linkedin.ex
LINE 76 https://github.com/ueberauth/ueberauth_twitter/blob/master/lib/ueberauth/strategy/twitter.ex
