Update wallet-kit-tutorial.mdx

docs/develop/wallet-kit/wallet-kit-tutorial.mdx

@@ -2,6 +2,10 @@ import Admonition from '@theme/Admonition';
 
 # Get Started with Wallet Kit
 
+<Admonition type="tip" icon="💡" title="Node version 16">
+Wallet Kit does not support mobile. For mobile, use[ Wallet Provider](../wallet-provider/wallet-provider-tutorial.mdx). Mobile support will be coming soon. 
+</Admonition>
+
 [Wallet Kit](https://github.com/terra-money/wallet-kit) makes it easy to build Station (browser extension and mobile) functionality into your React application. It contains custom hooks that drastically simplify common tasks like connecting a wallet and triggering transactions.
 
 This guide will cover how to set up a React app, integrate Wallet Kit, check the balance of the connected account, and call a token swap. If you want to integrate Station into an existing React app, jump to the [Wrap your app in `WalletProvider` section](#2-wrap-your-app-in-walletprovider).