Feat/lesson 2 update code & imgs

[7i7o]

Changes

• Update solc version from 0.8.12 to 0.8.20
• Update hardhat command (deprecated)
• Update comments about Goerli/Sepolia
• Update imgs with deployments to Sepolia using 0.8.20

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
academy	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 21, 2024 1:28am