message: build(docs-infra): ensure all API headings are sentence cased
  Closes
  PR Close
diff: interface {$ doc.name $}{$ doc.typeParams | escape $}{$ memberHelper.renderHeritage(doc) $} {{$ memberHelper.renderMembers(doc) $}
  }
  </code-example>
  -{$ descendants.renderDescendants(doc, 'interface', 'Child Interfaces') $}
  -{$ descendants.renderDescendants(doc, 'class', 'Class Implementations') $}
  +{$ descendants.renderDescendants(doc, 'interface', 'Child interfaces') $}
  +{$ descendants.renderDescendants(doc, 'class', 'Class implementations') $}
  </section>
  \ No newline at end of file
  