Describe the bug

In my case, docOptions from the configuration file do not affect the generation result.
Pagination_next etc doesn't appears in generated files.

I believe, problem is here:
https://github.com/graphql-markdown/graphql-markdown/blob/main/packages/docusaurus/src/index.ts#L52

The behaviour was changed in that commit:

f0171ae#diff-34de6b51f4b6138effd8cc9e454b4c822fd6463903ffced00027a242fa9df47bL91c

• Docusaurus configuration

  plugins: [
  [
  '@graphql-markdown/docusaurus',
  {
  schema: "./schema.graphql",
  rootPath: "./docs",
  baseURL: "/",
  homepage: "./docs/hello.md",
  linkRoot: "/",
  tmpDir: "./cache",
  skipDocDirective: "@docignore",
  docOptions: {
  frontMatter: {
  pagination_next: null, // disable page navigation next
  pagination_prev: null, // disable page navigation previous
  hide_table_of_contents: true, // disable page table of content
  },
  index: true, // enable generated index pages, same as CLI flag --index
  },
  printTypeOptions: {
  hierarchy: "entity", // disable type API grouping, same as CLI flag --hierarchy entity
  parentTypePrefix: false,
  relatedTypeSection: false,
  typeBadges: false
  },
  loaders: {
  GraphQLFileLoader: "@graphql-tools/graphql-file-loader" // local file schema
  }
  },
  ],
  ],

Expected behavior