doc: added LVGL in the practice section

README.md

@@ -323,6 +323,13 @@ ThorVG has been integrated into the [Godot](https://www.godotengine.org) project
   <img width="798" height="auto" src="https://github.com/thorvg/thorvg/blob/main/res/example_godot.png">
 </p>
 
+### LVGL
+[LVGL](https://lvgl.io/) is the most popular free and open-source embedded graphics library to create beautiful UIs for any MCU, MPU and display type. The complete graphic framework includes a variety of widgets for you to use in the creation of your GUI, and supports more advanced functions such as animations and anti-aliasing. ThorVG serves as the vector drawing primitives library in the LVGL framework.
+
+<p align="center">
+  <img width="798" height="auto" src="https://github.com/thorvg/thorvg/blob/main/res/example_lvgl.png">
+</p>
+
 ### Tizen
 ThorVG has been integrated into the [Tizen](https://www.tizen.org) platform as the vector graphics engine. [NUI](https://docs.tizen.org/application/dotnet/guides/user-interface/nui/overview/) is the name of Tizen UI framework which is written in C#. ThorVG is the backend engine of the [NUI Vector Graphics](https://docs.tizen.org/application/dotnet/guides/user-interface/nui/vectorgraphics/Overview/) which is used for vector primitive drawings and scalable image contents such as SVG and Lottie Animation among the Tizen applications.