message: Fix syntax errors in MarkdownEditor docs examples
diff: @@ -27,7 +27,7 @@ import {MarkdownEditor} from '@primer/react/drafts'
  A `Label` is always required for accessibility:
  ```javascript live noinline drafts
  -const renderMarkdown = async markdown => {
  +const renderMarkdown = async (markdown) => {
  // In production code, this would make a query to some external API endpoint to render
  return 'Rendered Markdown.'
  }
  @@ -48,9 +48,9 @@ render(MinimalExample)
  ### Suggestions, File Uploads, and Saved Replies
  ```javascript live noinline drafts
  -const renderMarkdown = async markdown => 'Rendered Markdown.'
  +const renderMarkdown = async (markdown) => 'Rendered Markdown.'
  -const uploadFile = async file => ({
  +const uploadFile = async (file) => ({
  url: `https://example.com/${encodeURIComponent(file.name)}`,
  file
  })
  @@ -120,7 +120,7 @@ render(MinimalExample)
  ### Custom Buttons
  ```javascript live noinline drafts
  -const renderMarkdown = async markdown => 'Rendered Markdown.'
  +const renderMarkdown = async (markdown) => 'Rendered Markdown.'
  const MinimalExample = () => {
  const [value, setValue] = React.useState('')
  