docs: mention eslint in README (#29)

README.md

@@ -98,6 +98,7 @@ Documentation can be read in two formats\_ _markdown_ & _blog post_.
 **Code Formatting** - [Prettier](https://prettier.io/)  
 **Deployment** - [Cloudflare Pages](https://pages.cloudflare.com/)  
 **Illustration in About Page** - [https://freesvgillustration.com](https://freesvgillustration.com/)
+**Linting** - [ESLint](https://eslint.org)
 
 ## 👨🏻‍💻 Running Locally
 
@@ -137,6 +138,7 @@ All commands are run from the root of the project, from a terminal:
 | `npm run format`       | Format codes with Prettier                                                                                                       |
 | `npm run sync`         | Generates TypeScript types for all Astro modules. [Learn more](https://docs.astro.build/en/reference/cli-reference/#astro-sync). |
 | `npm run cz`           | Commit code changes with commitizen                                                                                              |
+| `npm run lint`         | Lint with ESLint                                                                                                                 |
 
 ## ✨ Feedback & Suggestions