message: docs: fix typo and add parenthesis to method in HTTP tutorial
  Merge remote-tracking branch 'origin/TOH' into TOH
  PR Close
diff: @@ -112,7 +112,7 @@ Inject `HttpClient` into the constructor in a private property called `http`.
  </code-example>
  Keep injecting the `MessageService`. You'll call it so frequently that
  -you'll wrap it in private `log` method.
  +you'll wrap it in a private `log()` method.
  <code-example
  path="toh-pt6/src/app/hero.service.ts"
  