changed filename from api.md to interface.md
changed filename from api.md to interface.md

CreativeCommons-Seneca/registry,CreativeCommons-Seneca/registry,CreativeCommons-Seneca/registry,CreativeCommons-Seneca/registry,CreativeCommons-Seneca/registry,CreativeCommons-Seneca/registry,CreativeCommons-Seneca/registry,CreativeCommons-Seneca/registry