chore: add readme (#50)

Author: SamVerschueren

README.md

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+<p align="center">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="media/logo-white.svg">
+    <img src="media/logo.svg" alt="tutorialkit-logo" width="440px" height="120px" />
+  </picture>
+  <br>
+  TutorialKit by <a href="https://stackblitz.com">StackBlitz</a> enables you to create interactive coding tutorials effortlessly, boosting the adoption of 
+  your framework, UI library or design system. 
+</p>
+
+<p align="center">
+  <a href="https://tutorialkit.dev/"><strong>tutorialkit.dev</strong></a>
+  <br>
+</p>
+
+<p align="center">
+  <a href="https://tutorialkit.dev/guides/about/#getting-started">Get Started</a>
+  ·
+  <a href="https://demo.tutorialkit.dev/">Try Demo</a>
+  <br>
+  <br>
+</p>
+
+<hr>
+
+## Documentation
+
+Read our documentation on [tutorialkit.dev](https://tutorialkit.dev/guides/about)
+
+## Development Setup
+
+### Prerequisites
+
+- Install [Node.js](https://nodejs.org/en) v18.18 or above.
+- Install [pnpm](https://pnpm.io/).
+
+### Set up
+
+Clone this repository and navigate into the cloned directory.
+
+```
+git clone [email protected]:stackblitz/tutorialkit.git
+cd tutorialkit
+```
+
+TutorialKit uses [pnpm workspaces](https://pnpm.io/workspaces). Just run the install command in the root of the project.
+
+```
+pnpm install
+```
+
+You can now start the development template of TutorialKit by running:
+
+```
+pnpm template:dev
+```
+
+## Community
+
+Come and say hi :wave:!
+
+- [X](https://x.com/stackblitz)
+- [Discord](https://discord.gg/stackblitz)
+- [GitHub](https://github.com/stackblitz)