thirdweb should be lowercase (#5497)

Signed-off-by: Nacho Iacovino <[email protected]>

Author: nachoiacovino

apps/portal/src/app/connect/pay/guides/accept-direct-payments/page.mdx

@@ -38,7 +38,7 @@ Before jumping in, it's important to understand the full system, from initial pu
 Now, let's get started.
 
 <Steps>
-	<Step title="Set Up Thirdweb Engine">
+	<Step title="Set Up thirdweb Engine">
 
     	1. If you haven't already, log in and [deploy an Engine
     	instance](https://thirdweb.com/team/~/~/engine)