Is there a way to add the flag icon to an entry title

I need to be able to put a flag icon in the title of an entry, is there a way to do this?

Below is a link from a website that does this:
https://headbangerslatinoamerica.com/%f0%9f%87%ba%f0%9f%87%be-entrevista-map-presenta-su-disco-far-beyond-time/