README.md in middleware_healthcheck-0.2.2 vs README.md in middleware_healthcheck-1.0.0

@@ -92,11 +92,11 @@
 Your Custom Checker class should look like this:
 
 ```ruby
 class MyCustomChecker
   attr_accessor :error
- 
+
   def initialize(_app, _env)
   end
 
   def healthy?
     if everything_ok?
@@ -117,9 +117,14 @@
 end
 ```
 in initializer.
 
 # Contributing
+
+Contributors:
+- Adam Wieczorkowski [e-mail]
+- Claudio Perez Gamayo [e-mail]
+- Jan Wieczorkowski [e-mail]
 
 Use the provided dockerized development environment. For more information check the [CONTRIBUTING](CONTRIBUTING.md) file.
 
 ## Development