Your example is not what the article is talking about, because it doesn’t change words in the middle of the quote. An example would be:
> “[It’s] invaluable in [legalese]” —torstenvl
The first part is a shortening/paraphrasing and clearly marked as such. But you didn’t use the word legalese, but I put it in there because I like it better. And that’s wrong.
Although personally I would write something outside of the quotes to ease the reader into your direct quote, possibly using brackets or parentheses to signify cuts.
> “[It’s] invaluable in [legalese]” —torstenvl
The first part is a shortening/paraphrasing and clearly marked as such. But you didn’t use the word legalese, but I put it in there because I like it better. And that’s wrong.
Although personally I would write something outside of the quotes to ease the reader into your direct quote, possibly using brackets or parentheses to signify cuts.