Docs: removed correct code from incorrect eg section

[anikethsaha]

Prerequisites checklist

• I have read the contributing guidelines.
• The team has reached consensus on the changes proposed in this pull request. If not, I understand that the evaluation process will begin with this pull request and won't be merged until the team has reached consensus.

What is the purpose of this pull request? (put an "X" next to an item)

[X] Documentation update
[ ] Bug fix (template)
[ ] New rule (template)
[ ] Changes an existing rule (template)
[ ] Add autofixing to a rule
[ ] Add a CLI option
[ ] Add something to the core
[ ] Other, please explain:

What changes did you make? (Give an overview)

Removed the code from snippet which is correct but placed in the section for incorrect example
for quote-prop rule's always example in docs

check the snippet for incorrect

{
 "qux-lorem": true  // correct code
}

Is there anything you'd like reviewers to focus on?

demo

[kaicataldo]

LGTM, thanks!

[nzakas]

LGTM. Thanks