Added funding into composer.json.

Author: DKravtsov

composer.json

@@ -32,7 +32,15 @@
 	],
 	"funding": [
 		{
-			"type": "other",
+			"type": "github",
+			"url": "https://github.com/sponsors/systemsdk"
+		},
+		{
+			"type": "opencollective",
+			"url": "https://opencollective.com/systemsdk-engineering"
+		},
+		{
+			"type": "custom",
 			"url": "https://secure.wayforpay.com/button/b0b1af16db515"
 		}
 	],