Every pleading shall contain a caption setting forth the name of the court, the title and number of the action, and a designation of the pleading. The title of the action shall state the name of the first party on each side with an appropriate indication of other parties.

A statement in a pleading may be adopted by reference in a different part of the same pleading or in another pleading in the same court. A copy of any written instrument that is an exhibit to a pleading is a part thereof .