Update README.md

README.md

@@ -30,18 +30,47 @@ After revving:
 
     http://example.com/uploads/images/_572x430_crop_center-center_80/James-Ellis_elevation-render-1.1485302752.jpg
 
-Here's the method:
-
-```php
-public function revUrl(AssetFileModel $asset, $transform)
-{
-    return str_replace(
-        $asset->getExtension(),
-        $asset->dateModified->getTimestamp().'.'.$asset->getExtension(),
-        $asset->getUrl($transform)
-    );
-}
-```
+### Updating your server config
+
+This plugin doesn't actually change the the filename on the server. You'll need to implement rewrite rules on your server.
+
+#### Apache
+
+See: https://github.com/h5bp/server-configs-apache/blob/master/dist/.htaccess#L968-L984
+
+    # ----------------------------------------------------------------------
+    # | Filename-based cache busting                                       |
+    # ----------------------------------------------------------------------
+
+    # If you're not using a build process to manage your filename version
+    # revving, you might want to consider enabling the following directives
+    # to route all requests such as `/style.12345.css` to `/style.css`.
+    #
+    # To understand why this is important and even a better solution than
+    # using something like `*.css?v231`, please see:
+    # http://www.stevesouders.com/blog/2008/08/23/revving-filenames-dont-use-querystring/
+
+    # <IfModule mod_rewrite.c>
+    #     RewriteEngine On
+    #     RewriteCond %{REQUEST_FILENAME} !-f
+    #     RewriteRule ^(.+)\.(\d+)\.(bmp|css|cur|gif|ico|jpe?g|js|png|svgz?|webp|webmanifest)$ $1.$3 [L]
+    # </IfModule>
+
+#### NGINX
+
+See: https://github.com/h5bp/server-configs-nginx/blob/master/h5bp/location/cache-busting.conf#L1-L10
+
+    # Built-in filename-based cache busting
+
+    # This will route all requests for /css/style.20120716.css to /css/style.css
+    # Read also this: github.com/h5bp/html5-boilerplate/wiki/cachebusting
+    # This is not included by default, because it'd be better if you use the build
+    # script to manage the file names.
+    location ~* (.+)\.(?:\d+)\.(js|css|png|jpg|jpeg|gif)$ {
+      try_files $uri $1.$2;
+    }
+
+
 
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