Enter a Skype ID into social settings – what is proper syntax?

Hi;
I see that Skype is a social network that can be added to the header along with Twitter and others. I tried just putting in my Skype ID, but it defaults to https://skypeid and does not work.

What is the proper syntax to enter Skype information into this button?

I went to the Skype site, and it gave me HTML code to add the button. I don’t think I can enter all that into the box in Social Links, can I?

Thanks, as always.
MJ