add doc for important modifier

README.md

@@ -74,7 +74,12 @@ npx degit nguyenyou/scalawind/examples/vite-app my-scalawind-app
 To specify a class to be important, you can wrap it inside the `tw.important()` or `tw.i()` modifier.
 
 ```scala
-button(cls := sw(tw.text_red_500.important(tw.text_black)), "Click me")
+button(cls := sw(tw.text_red_500.important(tw.text_black).hover(tw.important(tw.text_blue_700))), "Click me")
+```
+
+The output will be:
+```
+<button class="text-red-500 !text-black hover:!text-blue-700">Click me</button>
 ```