new: file_server.sort

src/docs/markdown/caddyfile/directives/file_server.md

@@ -40,6 +40,7 @@ file_server [<matcher>] [browse] {
 	status        <status>
 	disable_canonical_uris
 	pass_thru
+	sort          <options...>
 }
 ```
 
@@ -69,6 +70,12 @@ file_server [<matcher>] [browse] {
 
 - **pass_thru** <span id="pass_thru"/> enables pass-thru mode, which continues to the next HTTP handler in the route if the requested file is not found, instead of triggering a `404` error (invoking [`handle_errors`](handle_errors) routes). Practically, this is only useful inside of a [`route`](route) block with other handler directives following `file_server`, because this directive is effectively [ordered last](/docs/caddyfile/directives#directive-order).
 
+- **sort** <span id="sort"/> specifies how to sort directory listings. The `options` can be `sortBy` and `order` separated by spaces.
+
+  - **sortBy** can be one of `name`, `size`, `time`. Default: `name`
+
+  - **order** can be one of `asc` or `desc`. Default: `asc`
+
 ## Examples
 
 A static file server out of the current directory: