Hello George,

Yes you can.

You will need to edit the tweets.php file located in the sections folder.

In your Admin Dashboard go to Appearance > Editor and select the Sections folder.

Then select the tweets.php file.

You will see on line 15 the following code;

https://www.dropbox.com/s/5p43nw14551xj5p/tweets.PNG?dl=0

Replace the href tag with your website.