Clojurians Log v2

@ska yup, that was my last remark, should have used the code marker to make it more clear. I did have a little trouble figuring out how to get only the span details for particular tags though — my guess is that I should use tree-seq for that

and now I know how not to use the code marker

@conaw, ah now I understand your last comment. I misread it for an unfinished sentence and later forgot about it. Then span was a surprise to me. 😄