✨ Add Node Codex (#1335)

* ✨ Add Node Codex 📇

* ⚡Add codex files for new nodes

* ⚡ Change category for Affinity

* 🔨 Fix credential documentation link

* ⚡Improve styling

* ⚡Add blogposts

Co-authored-by: Amudhan <sm.amudhan@live.com>

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

@@ -0,0 +1,27 @@
+{
+	"node": "n8n-nodes-base.matrix",
+	"nodeVersion": "1.0",
+	"codexVersion": "1.0",
+	"categories": [
+		"Communication"
+	],
+	"resources": {
+		"credentialDocumentation": [
+			{
+				"url": "https://docs.n8n.io/credentials/matrix"
+			}
+		],
+		"primaryDocumentation": [
+			{
+				"url": "https://docs.n8n.io/nodes/n8n-nodes-base.matrix/"
+			}
+		],
+		"generic": [
+			{
+				"label": "How to host virtual coffee breaks with n8n",
+				"icon": "☕️",
+				"url": "https://n8n.io/blog/how-to-host-virtual-coffee-breaks-with-n8n/"
+			}
+		]
+	}
+}