message: [Doc] update contribution guide
diff: @@ -3,10 +3,12 @@ export default {
  'changelog.en-US': () => import('../markdown/changelog.en-US.md'),
  'changelog.generated': () => import('../markdown/changelog.generated.md'),
  'changelog.zh-CN': () => import('../markdown/changelog.zh-CN.md'),
  + 'contribution.zh-CN': () => import('../markdown/contribution.zh-CN.md'),
  'intro.en-US': () => import('../markdown/intro.en-US.md'),
  'intro.zh-CN': () => import('../markdown/intro.zh-CN.md'),
  'quickstart.en-US': () => import('../markdown/quickstart.en-US.md'),
  'quickstart.zh-CN': () => import('../markdown/quickstart.zh-CN.md'),
  + 'style-guide.zh-CN': () => import('../markdown/style-guide.zh-CN.md'),
  'theme.en-US': () => import('../markdown/theme.en-US.md'),
  'theme.zh-CN': () => import('../markdown/theme.zh-CN.md'),
  'actionsheet.en-US': () => import('../../packages/actionsheet/en-US.md'),
  