log GitHub rate limit
log GitHub rate limit

should let us better diagnose rate-limiting issues
iamjakob/nbviewer,bollwyvl/nbviewer,AlfiyaZi/nbviewer,thomasyu888/nbviewer,Jay-Oh-eN/nbviewer,Jay-Oh-eN/nbviewer,roxyboy/nbviewer,AlfiyaZi/nbviewer,bollwyvl/nbviewer,christophelec/nbviewer,roxyboy/nbviewer,thomasyu888/nbviewer,Sage-Bionetworks/nbviewer,Sage-Bionetworks/nbviewer,christophelec/nbviewer,iamjakob/nbviewer,imsparsh/nbviewer,imsparsh/nbviewer