Mention edn as a valid encoding in the docs.
Mention edn as a valid encoding in the docs.

coopsource/immutant,immutant/immutant,kbaribeau/immutant,kbaribeau/immutant,immutant/immutant,coopsource/immutant,immutant/immutant,kbaribeau/immutant,coopsource/immutant,immutant/immutant