Merge "docs: Billing: In-app purchase titles don't have to be unique" into mnc-mr-docs

    application.</p>

  </li>

  <li><strong>Title</strong>

    <p>The title is a short descriptor for the item. For example, "Sleeping potion." Titles must be

    unique across an application's namespace. Every item must have a title. The title is visible to

    <p>The title is a short descriptor for the item. For example, "Sleeping potion."

    Every item must have a title. The title is visible to

    users during checkout. For optimum appearance, titles should be no longer than 25 characters;

    however, titles can be up to 55 characters in length.</p>

  </li>