To upload your photo, go to Configure Site > My Photo in your dashboard (For mobile users, click on the icon below first).
Click "Browse" on this page to search for your saved photo. Once you find it, select it and make sure to click "Save" when finished.
Note: The photo needs to be 200x200 (pixels) & 200KB or less - Use a photo editing program to crop/modify/optimize your image before uploading.