Documented config property for excluding paths from listing

Author: leo

README.md

@@ -50,7 +50,8 @@ You can use any of the following options:
 - [rewrites](#rewrites-array) (rewrite paths to different paths)
 - [redirects](#redirects-array) (forward paths to different paths or URLs)
 - [headers](#headers-array) (set custom headers)
-- [directoryListing](#trailingslash-boolean) (disable directory listing or restrict it to certain paths)
+- [directoryListing](#directorylisting-booleanarray) (disable directory listing or restrict it to certain paths)
+- [unlisted](#unlisted-array) (exclude paths from the directory listing)
 - [trailingSlash](#trailingslash-boolean) (remove or add trailing slashes to all paths)
 
 ### public (Boolean)
@@ -182,6 +183,23 @@ If you'd like to disable this for all paths, set this option to `false`. Further
 }
 ```
 
+### unlisted (Array)
+
+In certain cases, you might not want a file or directory to appear in the directory listing. In these situations, there are two ways of solving this problem.
+
+Either you disable the directory listing entirely (like shown [here](#directorylisting-booleanarray)), or you exclude certain paths from those listings by adding them all to this config property.
+
+```json
+{
+  "unlisted": [
+    ".DS_Store",
+    ".git"
+  ]
+}
+```
+
+The items shown above are excluded from the directory listing by default.
+
 ### trailingSlash (Boolean)
 
 By default, the package will try to make assumptions for when to add trailing slashes to your URLs or not. If you want to remove them, set this property to `false` and `true` if you want to force them on all URLs: