how to add my facebok webpage to an href link in wordpress header : Working with a developer from india that got his money and stopped coding. I have the following code: and want to add www.facebook.com/"mypage"

    href="<?php echo get_option('facebook');?>"><i class="fab fa-facebook-f

This is on wordpress. Does anyone know where in this code i can add the /mypage? currently the link goes to facebook so i know its coded somewhere but i cant find it.

Ive tried to plug and chug but that didn't really help.

Thanks