Add documentation template
Add documentation template


Former-commit-id: 52f75e0295debfe47d488d186a169a47439cb5f8
exonum/exonum,exonum/exonum,exonum/exonum,alekseysidorov/exonum,alekseysidorov/exonum,alekseysidorov/exonum,alekseysidorov/exonum,exonum/exonum