Moving preview as a top level category so changing top category from develop to preview

    if:devsite ?>

    <meta name="top_category" value="<?cs

      if:ndk ?>ndk<?cs

      elif:(guide||develop||training||reference||tools||sdk||google||reference.gms||reference.gcm||samples||preview) ?>develop<?cs

      elif:(guide||develop||training||reference||tools||sdk||google||reference.gms||reference.gcm||samples) ?>develop<?cs

      elif:(go||libraries) ?>develop<?cs

      elif:(distribute||googleplay||essentials||users||engage||monetize||disttools||stories||analyze) ?>distribute<?cs

      elif:(design||vision||material||patterns||devices||designdownloads) ?>design<?cs

      elif:(about||versions||wear||tv||auto) ?>about<?cs

      elif:preview ?>preview<?cs

      else ?>none<?cs

      /if ?>" />

    <?cs set:dac_subcategory_set = #1 ?>