assets in readme provided

Author: thisisyusub

README.md

@@ -1,5 +1,10 @@
 # ComposeBook
 
+ Desktop Preview                                   |                 Mobile Preview                  |
+|:--------------------------------------------------|:-----------------------------------------------:|
+| <img src="assets/desktop-light.png" width="100%"> | <img src="assets/mobile-light.png" width="230"> |
+| <img src="assets/desktop-dark.png" width="100%">  | <img src="assets/mobile-dark.png" width="230">  |
+
 A Storybook-like UI component browser for **Compose Multiplatform**. Showcase, test, and interact
 with your composable components in isolation across Android, iOS, Desktop, and Web.
 

assets/desktop-dark.png

@@ -54,6 +54,13 @@ fun ComposeBookDemo() {
 fun DirectoryBuilder.buttonUseCases() {
     directory("Button") {
         useCase("Primary") {
+            val stringKnob = knob.string("Label", "Hello")
+            val booleanKnob = knob.boolean("Enabled", true)
+            val intSliderKnob = knob.intSlider("Size", initialValue = 16, range = 8..32)
+            val intKnob = knob.int("Int", 123)
+            val floatKnob = knob.float("Float", 123.456f)
+            val dropdownKnob = knob.dropdown("Dropdown", listOf("Option 1", "Option 2", "Option 3"))
+
             AppButton(label = knob.string("Label", "Click Me"))
         }
         useCase("Outlined") {