message: docs: make the styles section less ambiguous
  PR Close
diff: @@ -116,7 +116,7 @@ Most apps strive for a consistent look across the application.
  The CLI generated an empty `styles.css` for this purpose.
  Put your application-wide styles there.
  -Here's an excerpt from the `styles.css` for the _Tour of Heroes_ sample app.
  +Open `src/styles.css` and add the code below to the file.
  <code-example path="toh-pt0/src/styles.1.css" header="src/styles.css (excerpt)">
  </code-example>
  