You can already make this happen by editing your profile, and an icon will be displayed on your profile.

yes . but there are no way to add medium profile link

agree it is not possible, but if you write on medium, you might consider adding that to your profile as a publication.

nonetheless, I gave you idea a thumbs up, it is probably easy to add (they added ADP list recently, I think, that didn't take much effort)

@Dorine Boudry yes i do this , but i hope if add this badge on profile like LinkedIn 

@Kerollos Adel  I think just maybe have possibility to add a custom link (up to a certain amount) would be better