Update README.md

Author: nticaric

README.md

@@ -124,10 +124,6 @@ After that you can search your models with:
 
 `Post::search('Bugs Bunny')->get();`
 
-### Backers
-
-Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/tntsearch#backer)]
-
 ## Sponsors
 
 Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/tntsearch#sponsor)]