Specify the version of tailwindcss to install (#172)

Author: JennyHo5

apps/docs/src/routes/(app)/docs/installation/vite.mdx

@@ -23,7 +23,7 @@ When asked make sure to use Solid:
 Install `tailwindcss` and its peer dependencies, then generate your `tailwind.config.js` and `postcss.config.js` files:
 
 ```bash
-npm install -D tailwindcss postcss autoprefixer
+npm install -D tailwindcss@3 postcss autoprefixer
 npx tailwindcss init -p
 ```