Updated BACKERS.md

Author: ivaylokenov

BACKERS.md

@@ -5,7 +5,7 @@
 - [Become a backer or sponsor on Patreon](https://www.patreon.com/ivaylokenov)
 - [Become a backer or sponsor on OpenCollective](https://opencollective.com/mytestedaspnet)
 - [One-time donation via PayPal](http://paypal.me/ivaylokenov)
-- [One-time donation via Buy my a coffee](http://buymeacoff.ee/ivaylokenov)
+- [One-time donation via Buy Me A Coffee](http://buymeacoff.ee/ivaylokenov)
 - One-time donation via cryptocurrencies:
   - BTC (Bitcoin) - 3P49XMiGXxqR2Dq1HdqHpkCa6UD848rpBU 
   - BCH (Bitcoin Cash) - qqgyjlvmuydf6gtfhfdypyw2u8utmc3uqg4nwma3y4