[ci skip] Add random_compat as a suggested package in composer.json
diff --git a/composer.json b/composer.json
index 4a9e874..64d1be1 100644
--- a/composer.json
+++ b/composer.json
@@ -13,6 +13,9 @@
 	"require": {
 		"php": ">=5.2.4"
 	},
+	"suggest": {
+		"paragonie/random_compat": "Provides better randomness in PHP 5.x"
+	},
 	"require-dev": {
 		"mikey179/vfsStream": "1.1.*"
 	}