docs: name Speedrun Ethereum in the challenge intro (#497)

Author: denalimarsh

README.md

@@ -2,7 +2,7 @@
 
 ![readme-oracle](https://raw.githubusercontent.com/scaffold-eth/se-2-challenges/challenge-oracles/extension/packages/nextjs/public/hero.png)
 
-🔗 Build your own decentralized oracle systems! In this challenge, you'll explore three fundamental oracle architectures that power the decentralized web: **Whitelist Oracle**, **Staking Oracle**, and **Optimistic Oracle**.
+🔗 Build your own decentralized oracle systems! In this Speedrun Ethereum challenge, you'll explore three fundamental oracle architectures that power the decentralized web: **Whitelist Oracle**, **Staking Oracle**, and **Optimistic Oracle**.
 
 🧠 You'll dive deep into the mechanics of bringing real-world data onto the blockchain, understanding the critical trade-offs between security, decentralization, and efficiency. Each oracle design represents a different approach to solving the fundamental problem: How can we trust data from outside the blockchain, and how do we securely bring it on-chain?