Revert "Revert "Post Spec 추가""

This reverts commit 004b6f5a80185f62952d01c3963cec0f07bb71d4.
Revert "Revert "Revert "Post Spec 추가"""

This reverts commit dd78cbc4137be2f4b48a1b66dbc3a9e6aad9ada4.
제56회 ROR Lab.에서 작성했던 내용
Merge branch 'master' of https://github.com/RORLabNew/rorla_api