code: func (c *Config) Delete(section, key string) {
  	for sn, sect := range c.sections {
  		if sect.name == section {
  			for i, opt := range sect.options {
  				if opt.name == key {
  					c.sections[sn].options = append(sect.options[:i], sect.options[i+1:]...)
  					return
  				}
  			}
  			return
  		}
  	}
  }
docs: // Delete removes the option from the specified section.