message: fix: minor typo in Headings test of Assessments
diff: @@ -31,11 +31,8 @@ const headingLevelHowToTest: JSX.Element = (
  <ol>
  <li>
  In the target page, examine each heading to verify that its{' '}
  - <Markup.Emphasis>programmatic</Markup.Emphasis>
  - level matches the level that's presented <Markup.Emphasis>
  - visually
  - </Markup.Emphasis>{' '}
  - (through font style).
  + <Markup.Emphasis>programmatic</Markup.Emphasis> level matches the level that's
  + presented <Markup.Emphasis>visually</Markup.Emphasis> (through font style).
  <ol>
  <li>
  Lower-level headings should be more prominent than higher-level headings.
  