Update 08_Enumerations.md
Merge pull request #183 from umcsdon/patch-2

Update 08_Enumerations.md
Merge pull request #184 from stanzhai/develop

【校对】删除.DS_Store，添加.gitignore，解决2.4节冲突，标准化3.9文档
Merge pull request #185 from stanzhai/develop

【校对】审查完所有文档，确保没有冲突
Add: 译者和校对人github地址
correct a mistake, fix header ref