add a bunch of examples since they're more succinct than a full api description
add a bunch of examples since they're more succinct than a full api description

william-silversmith/tenacity,muhammad-ammar/retrying,jd/tenacity,cyrusd/retrying,JioCloud/retrying,underrun/retrying,bodenr/tenacity,varunarya10/retrying,harlowja/retrying,rholder/retrying