docs: added malchimp integration guide (#12807)

* docs: added malchimp integration guide

* add edit date

www/apps/resources/app/integrations/page.mdx

@@ -208,6 +208,14 @@ A Notification Module Provider sends messages to users and customers in your Med
       href: "/infrastructure-modules/notification/sendgrid",
       title: "SendGrid"
     },
+    {
+      href: "/integrations/guides/mailchimp",
+      title: "Mailchimp",
+      badge: {
+        variant: "blue",
+        children: "Tutorial"
+      }
+    },
     {
       href: "/integrations/guides/resend",
       title: "Resend",