Sure, but do you want to write
[{"title": "Opening",
"lede": "What happens when we \"open\" a file?"},
{"title": "ltrace",
"lede": "It turns out that ltrace uses the \"ptrace\" system call."}]
title: Opening
lede: What happens when we "open" a file?
title: ltrace
lede: It turns out that ltrace uses the "ptrace" system call.
There's also jq for yaml: https://github.com/kislyuk/yq
In fact, you can already do the querying part using https://stedolan.github.io/jq/, I believe you can make modifications with it as well, but a different front end a la recins/recdel would make that a bit more convenient.