feat: added sms otp docs

src/routes/docs/advanced/platform/+layout.svelte

@@ -89,6 +89,16 @@
                 }
             ]
         },
+        {
+            label: 'Add ons',
+            items: [
+                {
+                    new: true,
+                    label: 'Phone OTP',
+                    href: '/docs/advanced/platform/phone-otp'
+                }
+            ]
+        },
         {
             label: 'Configuration',
             items: [

src/routes/docs/advanced/platform/+page.markdoc

@@ -98,3 +98,13 @@ Add a custom domain for your Appwrite APIs.
 Create custom branding and messages when you communicate with users.
 {% /cards_item %}
 {% /cards %}
+
+# Add Ons {% #add-ons %}
+
+Learn about additional features and functionalities that Appwrite offers.
+
+{% cards %}
+{% cards_item href="/docs/advanced/platform/phone-otp" title="Phone OTP" %}
+Learn how Appwrite handles OTP and SMS-based authentication.
+{% /cards_item %}
+{% /cards %}