Fix contributors link in README

It currently tries to go to https://github.com/clun/ff4j/blob/master/graphs/contributors, which of course doesn't exist
ff4j · Nov 3, 2017 · aaa023f · aaa023f
1 parent 8008d8b
commit aaa023f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -29,7 +29,7 @@ Monitoring
 ## Contributors
 
 This project exists thanks to all the people who contribute. [[Contribute]](CONTRIBUTING.md).
-<a href="graphs/contributors"><img src="https://opencollective.com/ff4j/contributors.svg?width=890" /></a>
+<a href="https://github.com/clun/ff4j/graphs/contributors"><img src="https://opencollective.com/ff4j/contributors.svg?width=890" /></a>
 
 
 ## Backers