Update scenario1.mdx (#32)

Scenario 6 timing  hint (for free) added.

data/hackathon/scenario1.mdx

@@ -72,6 +72,7 @@ The event team will reply in slack to confirm your team has been recorded and st
 
 
 ## 1.5 - Hints!
+The first hint is free: In scenario 6, you will need to provision 15 minutes time for synthetic data generation as well as 20 minutes for model training. You might want to make this part of your strategy to win.
 
 If you get stuck on a question, fear not, perhaps try a different approach. If you have tried everything you can think of and are still stuck you can unlock a hint for `5` points by posting a message in the `#event-anz-ocp-ai-hackathon` channel with the message: