docs(README): add RTL support text

README.md

@@ -25,6 +25,7 @@
     - [Init functions](#init-functions)
   - [ESM and CJS](#esm-and-cjs)
   - [TypeScript](#typescript)
+  - [RTL support](#rtl-support)
   - [JavaScript Frameworks](#javascript-frameworks)
   - [Back-end Frameworks](#back-end-frameworks)
 - [Components](#components)
@@ -195,7 +196,7 @@ const $modalElement = document.querySelector('#modalEl');
 const modalOptions = {
     placement: 'bottom-right',
     backdrop: 'dynamic',
-    backdropClasses: 'bg-gray-900 bg-opacity-50 dark:bg-opacity-80 fixed inset-0 z-40',
+    backdropClasses: 'bg-gray-900/50 dark:bg-gray-900/80 fixed inset-0 z-40',
     onHide: () => {
         console.log('modal is hidden');
     },
@@ -247,6 +248,10 @@ const modal: ModalInterface = new Modal($modalElement, modalOptions);
 
 Learn more about Flowbite and TypeScript in the [quickstart guide](https://flowbite.com/docs/getting-started/typescript/).
 
+### RTL support
+
+All of the Flowbite UI components have native RTL support and you can easily set it up by using the `dir="rtl"` attribute on the HTML element. Read more about Flowbite and [RTL support here](https://flowbite.com/docs/customize/rtl/).
+
 ### JavaScript Frameworks
 
 The awesome open-source community also built and currently maintains the following standalone libraries for React, Vue, Svelte, and Angular: