[3.14] gh-136672: Docs: Move parts of Enum HOWTO to API Docs (GH-139176)#144802

ambv merged 1 commit intopython:3.14python/cpython:3.14from

miss-islington:backport-629a363-3.14miss-islington/cpython:backport-629a363-3.14Copy head branch name to clipboard