Update Minimal Theme docs

content/plugins/filament-minimal-theme.md

@@ -62,6 +62,26 @@ Next, replace the imported Panel Builder stylesheet with the Minimal Theme style
 + @import '/vendor/filament/minimal-theme/resources/css/index.css';
 ```
 
+Make sure the PostCSS Nesting plugin is installed in your project:
+
+```bash
+npm install postcss-nesting --save-dev
+```
+
+Then register it by adding it to your `postcss.config.js` file:
+
+```diff
+export default {
+    plugins: {
++       'tailwindcss/nesting': 'postcss-nesting',
+        tailwindcss: {},
+        autoprefixer: {},
+    },
+}
+```
+
+Now compile your theme stylesheet using `npm run build`.
+
 #### Configuration
 
 Finally, register the theme plugin in your panel configuration file, and configure the colors and icons:
@@ -94,6 +114,24 @@ If you're using Filament packages outside the Panel Builder, you may install the
 
 First, make sure you've properly installed any Filament packages. Your project should have a Tailwind CSS config file that extends the Filament preset, a stylesheet (e.g. `resources/css/app.css`), and a layout view that renders `@filamentStyles`.
 
+Also, make sure the PostCSS Nesting plugin is installed in your project:
+
+```bash
+npm install postcss-nesting --save-dev
+```
+
+Then register it by adding it to your `postcss.config.js` file:
+
+```diff
+export default {
+    plugins: {
++       'tailwindcss/nesting': 'postcss-nesting',
+        tailwindcss: {},
+        autoprefixer: {},
+    },
+}
+```
+
 #### Stylesheet
 
 In your app CSS file, import the Minimal Theme stylesheets for the Filament packages you're using: