I am new to editing code in WordPress and am trying to edit a premium WordPress theme I purchased. There are certain buttons that I need to link to other pages or destinations, but cannot figure out how to do it. For example, the theme came with buttons/icons for social media sites such as Facebook--but how do I link my business Facebook page with this icon? Similarly, there is an icon that says to "Click here to contact us" that I would like to point to an email address. The website can be viewed at http://parkwayvetonline.com.
I have tried pasting the web addresses of the Facebook page to the functions.php file but it didn't work. Help with linking the particular icons I listed above plus how to link icons/pages in general would be great. Any help would be much appreciated.