Update README.md

Author: linsdev

README.md

@@ -9,9 +9,8 @@ By the way, the game has an Easter egg. Can you find it?
 
 ## How It's Made
 
-It was developed on the Java using framework libGDX.
-The game uses shaders for drawing a circle and text.
-I'm using some tricks for optimizing rendering, e.g. render to texture.
+It was developed on the Java using framework libGDX. The framework provides to add shaders and interact with it via code an easy way. In the project I used custom shaders for drawing shapes and SDF text. Shapes are rendering into a texture which then drawn on the screen in the required places as much as necessary. This avoids shader-inside re-drawing graphic elements that do not change. The are used custom animation system for more control. The game saves was done by standard means of LibGDX via Json Serialization.
 
 ## Release
+LibGDX is a minimalistic framework. The framework allowed to build a lightweight app: android release has size about 3 MB:
 [Android release](./android/android-release.apk)