Added donate link

Author: maxguru

readme.txt

@@ -8,6 +8,7 @@ Tags: woocommerce, billing address, formatted billing address, plain text, forma
 Plugin URI: https://wordpress.org/plugins/plain-formatted-billing-address-for-woocommerce/
 Author: Maximum.Software
 Author URI: https://maximum.software
+Donate link: https://github.com/sponsors/maximum-software
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html