Merge pull request #83 from php-http/Nyholm-patch-1

Added Slim

Author: dbu

composer.json

@@ -22,7 +22,7 @@
     },
     "suggest": {
         "puli/composer-plugin": "Sets up Puli which is recommended for Discovery to work. Check http://docs.php-http.org/en/latest/discovery.html for more details.",
-        "php-http/message": "Allow to use Guzzle or Diactoros factories"
+        "php-http/message": "Allow to use Guzzle, Diactoros or Slim Framework factories"
     },
     "autoload": {
         "psr-4": {