Docs: Add dify integration (#2293)

docs/integrations/overview.mdx

@@ -178,4 +178,24 @@ Here are the available integrations for Mem0:
   >
     Use Mem0 with LangChain Tools for enhanced agent capabilities.
   </Card>
+  <Card
+    title="Dify"
+    icon={
+      <svg
+        xmlns="http://www.w3.org/2000/svg"
+        width="24"
+        height="24"
+        viewBox="0 0 200 200"
+        fill="none"
+      >
+        <path
+          d="M40 20 H120 C160 20, 160 180, 120 180 H40 V20"
+          fill="currentColor"
+        />
+      </svg>
+    }
+    href="/integrations/dify"
+  >
+    Build AI applications with persistent memory using Dify and Mem0.
+  </Card>
 </CardGroup>