[theIV]

My hunch is that this is a typo and it should read "extract bits OF content."

[ritchiea]

I agree and having a missing word in your text often leads to confusion :)

Honestly you could drop the "bits" which is a bit redundant and use the phrase "Uses CSS selectors to extract content from HTML files."

[mgdm]

Exactly this! I’ll fix it after work.

[rendall]

Maybe have the line about "jq" be 2nd. Have the first line be a brief description of what it actually does.