message: docs: fix stray div and reformat paragraph
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diff: @@ -20,15 +20,11 @@ unexpected definitions.
  ## Ahead-of-time (AOT) compilation
  You can compile Angular applications at build time.
  -By compiling your application using the compiler-cli, `ngc`, you can bootstrap directly
  -to a module factory, meaning you don't need to include the Angular compiler in your JavaScript bundle.
  +By compiling your application using the compiler-cli, `ngc`, you can bootstrap directly to a module factory, meaning you don't need to include the Angular compiler in your JavaScript bundle.
  Ahead-of-time compiled applications also benefit from decreased load time and increased performance.
  -</div>
  -
  -
  ## Annotation
  In practice, a synonym for [Decoration](guide/glossary#decorator).
  @@ -126,8 +122,6 @@ between a "token"&mdash;also referred to as a "key"&mdash;and a dependency [prov
  ## Bootstrap
  -<div class="l-sub-section">
  -
  You launch an Angular application by "bootstrapping" it using the application root NgModule (`AppModule`).
  Bootstrapping identifies an application's top level "root" [component](guide/glossary#component),
  @@ -643,6 +637,7 @@ A separate [NgModule](guide/glossary#ngmodule) that provides the necessary servi
  For more information, see the [Routing & Navigation](guide/router) page.
  +</div>
  ## Routing component
  