How to add image icon on the left of Github Repository' description

Question

I want to add this 🌀 icon to my project, but it says:

Error saving your changes: Description contains unicode characters above 0xffff

I want to make my repository's description like this:

Means it has an image on the left of description.

How to do this?

Answer 1

I change my description like this:

:cyclone: A self-taught project to learn Swift.

and it work now.