docs: update intro, installation, changelog

Author: mehdibha

content/docs/changelog.mdx

@@ -2,3 +2,5 @@
 title: Changelog
 description: Latest updates and announcements.
 ---
+
+## April 2024 - Product launch

content/docs/index.mdx

@@ -13,7 +13,8 @@ This has led to a new wave of developers sharing their own components as plain c
 rCopy wants to extend this idea to all the React ecosystem such as hooks, blocks, icons and more.
 
 > "Dependency Minimalism: Why go through all of this work to delete dependencies? After having a blog for 10 years, I've gained a new appreciation for keeping things simple. Now, I'm not going full minimalist here. I still want nice things. But I'm taking more opportunities to simplify and keep more code managed in the repo."
-> Lee Robinson, VP of Product @vercel
+>
+> -- <cite>Lee Robinson, VP of Product @vercel</cite>
 
 ## FAQ
 
@@ -31,3 +32,8 @@ In other words, sometimes copy and paste can be better than using the wrong abst
 - **Customization**: You can easily customize the code to fit your needs.
 - **Dependency minimalism**: You don’t need to install any dependencies.
 - **Ownership**: You own the code and can modify it as you wish.
+
+## Credits
+- [shadcn ui](https://ui.shadcn.com) - for the core components.
+- [radix ui](https://ui.shadcn.com) - for the primitives.
+- [vercel](https://ui.shadcn.com) - where I host all my projects.