Run yarn dev in your terminal, and then open localhost:3000 in your browser.
This command will also generate React Hooks from the Wagmi Mint Example Etherscan contract (e.g. useWagmiMintExampleTotalSupply, useWagmiMintExampleBalanceOf, etc) for you to use in your project.
Once the webpage has loaded, changes made to files inside the src/ directory (e.g. src/pages/market-claiming-form.tsx) will automatically update the webpage