Adding some more detail to SEP-6 page

docs/building-apps/example-application-tutorial/anchor-integration/sep6.mdx

@@ -259,7 +259,7 @@ The only reason we're storing anything about the transfer in BasicPay is to help
 
 ### (Sometimes) Modal step 5: Send a Stellar payment
 
-In a withdrawal transaction, BasicPay will also present the user with a pre-built transaction for them to sign with their pincode. Here we will finally get to move back to our "regular" modal that _is_ so good at so many things!
+In a withdrawal transaction, BasicPay will also build and present to the user a Stellar transaction for them to sign with their pincode. Here we will finally get to move back to our "regular" modal that _is_ so good at so many things!
 
 ```html title=/src/routes/dashboard/transfers/+page.svelte
 <script>
@@ -269,6 +269,18 @@ In a withdrawal transaction, BasicPay will also present the user with a pre-buil
   let paymentXDR = "";
   let paymentNetwork = "";
 
+  // After a withdraw transaction has been presented to the user, and they've confirmed with the correct pincode, sign and submit the transaction to the Stellar network.
+  const onPaymentConfirm = async (pincode) => {
+    // Use the walletStore to sign the transaction
+    let signedTransaction = await walletStore.sign({
+      transactionXDR: paymentXDR,
+      network: paymentNetwork,
+      pincode: pincode,
+    });
+    // Submit the transaction to the Stellar network
+    await submit(signedTransaction);
+  };
+
   // Builds a Stellar payment to present to the user which will complete a transfer to the Anchor.
   let submitPayment = async ({
     withdrawDetails,