Add week 5 tree-structured-data notes
Add week 5 tree-structured-data notes

MaximeKjaer/kjaermaxi.me,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/kjaer.io,MaximeKjaer/kjaer.io,MaximeKjaer/kjaermaxi.me,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/kjaermaxi.me,MaximeKjaer/kjaer.io,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/kjaer.io,MaximeKjaer/kjaermaxi.me