fix error dyndns typo

Author: Diego Mazo

docs/user/dappnode-app/dappnode-app-docs.md

@@ -83,7 +83,7 @@ Option 2: You can type the following in your browser search bar
 - chrome://apps/ (For Chrome)
 
 Option 3: You can access the Dappnode app using your **dyndns** (Dappnode's unique identifier) and **https** writing the domain below in the browser:  
-https://pwa.<dyndns>.io
+https://pwa.dyndns.io
 e.g. https://pwa.e17cb74a302298e6.dyndns.dappnode.io/
 You can find your dyndns in the top right icon in the Dappmanager.
 ![dyndns](/img/dyndns.png)

sidebars.js

@@ -442,6 +442,19 @@ const sidebars = {
         },
       ],
     },
+    {
+      type: "category",
+      label: "Dappnode App",
+      items: [
+        {
+          type: "doc",
+          label: "Overview",
+          id: "user/notifications/overview",
+        },
+        
+        
+      ],
+    },
     {
       type: "category",
       label: "Ethical metrics",