If you'd like to change Divi's default 'Designed by Elegant Themes | Powered by WordPress' links, here's how to do it.
Changing the Footer Links in Divi Booster
Divi Booster includes an option to change the footer credit links. You'll find it at 'Divi > Divi Booster > Footer > Bottom Bar > Replace footer credits with this text / HTML', like so:
Divi Booster Footer Link Shortcodes
You can use the following shortcodes in the footer:
[copy] – Copyright symbol [year] – Current year in YYYY format [yr] – Current year in YY format
Adding New Lines
If you want to insert newlines, you need to use the HTML newline tag, which is: <br/>