Show differences from the required form

[jablko]

to help authors react to them.

Only shows the new differences, not any existing diffs. notRemove.map(({ path }) => newDiff[Number(path.slice(1))]) assumes the notRemove operations are in ascending path order (e.g. /1, /2, /10, etc.).

[elibarzilay]

1. I'm not sure about showing these: in the non-tsconfig cases, the "required form" is not as required. Perhaps it could work if there's a way to verbalize the ignored properties too. (Though it still needs to end up as a short sentence.)
2. I'd like to keep these as one-liners, eg `...\`${JSON.stringify(...)}\`...` instead of the \`\`\`s.
3. Needs tests.

[jablko]

1. I'm not sure about showing these: in the non-tsconfig cases, the "required form" is not as required. Perhaps it could work if there's a way to verbalize the ignored properties too. (Though it still needs to end up as a short sentence.)

Agree there's room for improvement.

2. I'd like to keep these as one-liners, eg `...\`${JSON.stringify(...)}\`...` instead of the \`\`\`s.

Done ✔️

3. Needs tests.

I'll add a fixture when I catch a PR before it's merged 👍

[jablko]

Closing in favor of #235