doc: configure contracts page

docs/quick-start/configure-contracts.mdx

@@ -28,11 +28,32 @@ The contracts pulled from the network are determined by the chain configured in
 **Note:**
 While some contracts may have the same address on both `Sepolia and Mainnet`, this is not always guaranteed. Always double-check you are on the correct network based on the contract's intended usage.
 
-```bash
-// Example scaffold.config.ts
-export const config = {
-  network: "sepolia", // Use "mainnet" for Mainnet
+```ts
+export type ScaffoldConfig = {
+  targetNetworks: readonly chains.Chain[];
+  pollingInterval: number;
+  onlyLocalBurnerWallet: boolean;
+  rpcProviderUrl: string;
+  walletAutoConnect: boolean;
 };
+
+const scaffoldConfig = {
+  targetNetworks: [chains.devnet],
+  // Only show the Burner Wallet when running on devnet
+  onlyLocalBurnerWallet: false,
+  rpcProviderUrl: process.env.NEXT_PUBLIC_PROVIDER_URL || "",
+  // The interval at which your front-end polls the RPC servers for new data
+  // it has no effect if you only target the local network (default is 30_000)
+  pollingInterval: 30_000,
+  /**
+   * Auto connect:
+   * 1. If the user was connected into a wallet before, on page reload reconnect automatically
+   * 2. If user is not connected to any wallet:  On reload, connect to burner wallet if burnerWallet.enabled is true && burnerWallet.onlyLocal is false
+   */
+  walletAutoConnect: true,
+} as const satisfies ScaffoldConfig;
+
+export default scaffoldConfig;
 ```
 
 #### 2. Enter the Contract Address and Name
@@ -59,7 +80,7 @@ The tool will generate a configuration file that includes:
 - Contract Address
 - Class Hash
 
-```bash
+```ts
 export const externalContracts = [
   {
     address: "0x1234...",