message: docs: apply code styling in template reference variables guide
  PR Close
diff: @@ -37,9 +37,9 @@ by HTML.
  <code-example path="template-reference-variables/src/app/app.component.html" region="ngForm" header="src/app/hero-form.component.html"></code-example>
  -The reference value of itemForm, without the ngForm attribute value, would be
  +The reference value of `itemForm`, without the `ngForm` attribute value, would be
  the [HTMLFormElement](https://developer.mozilla.org/en-US/docs/Web/API/HTMLFormElement).
  -There is, however, a difference between a Component and a Directive in that a `Component`
  +There is, however, a difference between a `Component` and a `Directive` in that a `Component`
  will be referenced without specifying the attribute value, and a `Directive` will not
  change the implicit reference (that is, the element).
  