Fix "an" if Business Name does not start with a vowel (e.g. Automattic)

From https://wordpress.org/support/topic/a-versus-an

> I caught a grammatical error in the text and wanted to point it out to you:
> Under PROTECTION OF CERTAIN PERSONALLY-IDENTIFYING INFORMATION:
> "If you are a registered user of an [Name] website..."
> If the name begins with a consonant, "an" should be "a."
