docs: add readme

README.md

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-# 📝 Memola
+<p align="center">
+<img width="30%" src="Assets/app-logo.png">
+</p>
 
-Memola is an application where you capture your thoughts, concepts, notes and moods.
+<hr/>
+
+**Memola** is an open-source note-taking application that lets you jot down ideas and sketch your visions seamlessly on your iPhone, iPad, and MacBook.
+
+<p align="center">
+<img width="100%" src="Assets/app-demo.png">
+</p>
+
+## 🎉 Motivation
+Last year, I started reading Metal by Tutorials from Kodeco and was fascinated by GPU programming, particularly the process of building a graphic rendering engine. This led me to develop a note-taking app with a 2D render engine using Metal. There were a lot of challenges throughout, and I initially thought it would be a flop. However, I managed to figure out workarounds to get a functional render engine. I know it is not perfect yet and there are a lot of battles to be won in optimizing render efficiency and adding more writing tools. Regardless, I feel like it is ready to lauch the app and make the code open-source.
+
+## 👨‍💻 Contributions
+**Memola** welcomes all developers to contribute if you have any idea to enhance and open an issue if you encounter any bug.
+
+## 🙇 Credits
+- [BezierKit](https://github.com/hfutrell/BezierKit)
+- [FastDraw](https://github.com/collinzrj/FastDraw)
+- [hand-drawing-swift-metal](https://github.com/owengombas/hand-drawing-swift-metal)
+- [ios_metal_bezier_renderer](https://github.com/eldade/ios_metal_bezier_renderer)
+- [MaLiang](https://github.com/Harley-xk/MaLiang)
+- [MetalPaint](https://github.com/rydermackay/MetalPaint)
+- [MetalScroller](https://github.com/chunkyguy/MetalScroller)
+- [Metal2DScrollable](https://github.com/codelynx/Metal2DScrollable)
+- [rbush](https://github.com/mourner/rbush)
+- [RTree](https://github.com/imbcmdth/RTree)
+- [Sketch](https://github.com/daihase/Sketch)
+- [THST](https://github.com/tuxalin/THST)
+
+## © License
+**Memola** is available under the MIT license. See the [LICENSE](/LICENSE) file for more info.