types: export frontmatter options types

Author: farnabaz

src/index.ts

@@ -126,4 +126,4 @@ function bindData(data: Record<string, any>) {
 export { stringifyFrontMatter, parseFrontMatter } from './frontmatter'
 export { default as micromarkExtension } from './micromark-extension'
 export { convertHtmlEntitiesToChars } from './utils'
-export type { RemarkMDCOptions }
+export type { RemarkMDCOptions, YamlParseOptions, YamlToStringOptions } from './types'