use to_html in render single and multiple
use to_html in render single and multiple

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