Update _aa-address.mdx

Author: yashovardhan

embedded-wallets/sdk/_common/_aa-address.mdx

@@ -34,12 +34,15 @@ const smartAccountAddress = signer.getAddress()
 
 </TabItem>
 
+<TabItem value="Wagmi">
 ```tsx
 import { useConnection } from 'wagmi'
 
 const { address } = useConnection()
 const smartAccountAddress = address
+
 ```
 
 </TabItem>
 </Tabs>
+```