contrib: Implement a script to describe sessions
contrib: Implement a script to describe sessions

Related to #538

mawww/kakoune,alexherbo2/kakoune,danr/kakoune,casimir/kakoune,Somasis/kakoune,occivink/kakoune,danr/kakoune,lenormf/kakoune,lenormf/kakoune,Somasis/kakoune,lenormf/kakoune,alexherbo2/kakoune,casimir/kakoune,jkonecny12/kakoune,danr/kakoune,occivink/kakoune,alexherbo2/kakoune,alexherbo2/kakoune,occivink/kakoune,danr/kakoune,casimir/kakoune,mawww/kakoune,mawww/kakoune,jkonecny12/kakoune,casimir/kakoune,Somasis/kakoune,jkonecny12/kakoune,jkonecny12/kakoune,occivink/kakoune,Somasis/kakoune,mawww/kakoune,lenormf/kakoune