pr-9051.md

Fix format on style[lang="sass"] (#9051 by @fisker)

<!-- Input -->
<style lang="sass">
.hero
  @include background-centered
</style>

<!-- Prettier stable -->
<style lang="sass">
.hero @include background-centered;
</style>

<!-- Prettier master -->
<style lang="sass">
  .hero
    @include background-centered
</style>