docs for /api/evidence; body, schema, responses
docs for /api/evidence; body, schema, responses

refs #12

nbargnesi/openbel-server,OpenBEL/openbel-server,OpenBEL/openbel-server,OpenBEL/openbel-api,OpenBEL/openbel-api,OpenBEL/openbel-api,nbargnesi/openbel-server,OpenBEL/openbel-api,OpenBEL/openbel-server,nbargnesi/openbel-server