⚡ Add new codex files and fix previous files (#1608)

* ✨ Add new codex files and fixed previous files

* 🔨 Minor fix

* 🔨 Minor fix

packages/nodes-base/nodes/ErrorTrigger.node.json

@@ -2,6 +2,7 @@
 	"node": "n8n-nodes-base.errorTrigger",
 	"nodeVersion": "1.0",
 	"codexVersion": "1.0",
+	"details": "In n8n, when a workflow execution fails, it can start another workflow. This second workflow can be any arbitrary workflow on your n8n instance. Use the Error Trigger node as your Trigger in the Error workflow.",
 	"categories": [
 		"Development",
 		"Core Nodes"
@@ -16,7 +17,7 @@
 			{
 				"label": "Creating Error Workflows in n8n",
 				"icon": "🌪",
-				"url": "https://medium.com/n8n-io/creating-error-workflows-in-n8n-6e03c9ecbc0f"
+				"url": "https://n8n.io/blog/creating-error-workflows-in-n8n/"
 			}
 		]
 	}