Using HTML in Intent Script

Configuration
1

Is possible to use HTML or any other codes in Intent Script: Speech : Text ?

I want to add image into text. Something like:

# Example configuration.yaml entry
intent_script:
  GetTemperature:  # Intent type
    speech:
      text: We have {{ states.sensor.temperature }} degrees. Weather symbol: <img src='{{ states.sensor.weather.attributes["icon_url"] }}' />