fix: 🐛 add eslint example

Author: MatthysDev

challenges/ecosystem/02.md

@@ -278,6 +278,8 @@ In our case `cargo_capacity`, `cost_in_credits` are not using `camelCase` and we
 - [ ] Install [TanStack Query ESLint plugin](https://tanstack.com/query/latest/docs/eslint/eslint-plugin-query).
 - [ ] Install [Perfecionist](https://perfectionist.dev/) to enforce a consistent code style across your codebase.
 
+Your `.eslintrc.js` file should look like [this](https://raw.githubusercontent.com/flexbox/react-native-bootcamp/main/hackathon/spacecraft/.eslintrc.js)
+
 ### Share your settings with your team
 
 You can share your VSCode settings with your team by adding a `.vscode` folder at the root of your project with the following content.