Update index.mdx

Author: max-crawford

content/docs/stacks/hacks/index.mdx

@@ -46,4 +46,4 @@ In that submission, we expect to see:
 - A link to your code (a clear README is always appreciated)
 - A project description that covers the problem being solved, the technical approach, and future improvements for the project
 
-In terms of selecting winners, submissions will be evaluated on their technical implementation, their innovation/creativity, and their documentation/presentation.
+In terms of selecting winners, submissions will be evaluated on their technical implementation, their innovation/creativity, and their documentation/presentation. To learn more about the rules, read [Hiro Hacks Terms & Conditions](https://www.hiro.so/hiro-hacks-rules).