message: add SubNavLinks to index.d.tx
diff: @@ -477,8 +477,11 @@ declare module '@primer/components' {
  selected?: boolean
  }
  + export interface SubNavLinksProps extends CommonProps, Omit<React.HTMLAttributes<HTMLDivElement>, 'color'> {}
  +
  export const SubNav: React.FunctionComponent<SubNavProps> & {
  - Link: React.FunctionComponent<SubNavLinkProps>
  + Link: React.FunctionComponent<SubNavLinkProps>,
  + Links: React.FunctionComponent<SubNavLinksProps>
  }
  export interface BreadcrumbProps
  