Fix typo in account linking docs (#1526)

docs/pages/guides/oauth/account-linking.md

@@ -13,9 +13,8 @@ In general, you'd want to link accounts with the same email. Keep in mind that t
 ```ts
 import { generateId } from "lucia";
 
-const tokens = await github.validateAuthorizationCode(code, {
-	scopes: ["user:email"]
-});
+// Make sure you requested for the "user:email" scope.
+const tokens = await github.validateAuthorizationCode(code);
 const userResponse = await fetch("https://api.github.com/user", {
 	headers: {
 		Authorization: `Bearer ${tokens.accessToken}`