Fix stack repo location graylog.json (#374)

template/apps/graylog.json

@@ -26,7 +26,7 @@
 	"repository": {
 		"stackfile_arm64": "stack/graylog.yml",
 		"stackfile_amd64": "stack/graylog.yml",
-		"url": "https://github.com/Griffen8280/pi-hosted"
+		"url": "https://github.com/pi-hosted/pi-hosted"
 	},
 	"restart_policy": "unless-stopped",
 	"title": "Graylog",