redwood-js.mdx update command to add flowbite-react into web workspace (

#1313)

Update redwood-js.mdx

updating command to add flowbite-react to web workspace

apps/web/content/docs/guides/redwood-js.mdx

@@ -50,7 +50,7 @@ yarn rw setup ui tailwindcss
 1. Run the following command to install `flowbite-react`:
 
 ```bash
-yarn add flowbite-react
+yarn workspace web add flowbite-react
 ```
 
 2. Add the Flowbite plugin to `tailwind.config.js` and include content from `flowbite-react`: