Update readme, description

Readme.md

@@ -12,10 +12,18 @@ contain (of course, the downside is that your web pages cannot use javascript fo
 
 The common usage is to first share a file and enable public access through a link. If the share link
 is `https://my-nextcloud/s/aBc123DeF456xyZ`, then this app will provide access to the raw file at
-`https://my-nextcloud/apps/raw/s/aBc123DeF456xyZ`.
+`https://my-nextcloud/apps/raw/s/aBc123DeF456xyZ`.  If the share is a folder, the files within it
+are accessible as e.g. `https://my-nextcloud/apps/raw/s/aBc123DeF456xyZ/path/to/file`.
+
+A user can also access their own private files. For example, a file named `test.html` in anansi's
+Documents folder would be available at `https://my-nextcloud/apps/raw/u/anansi/Documents/test.html`.
+
+## Installation
+
+Copy/clone this repo into your Nextcloud installation's `/apps` (or `/custom_apps`) folder, log into
+Nextcloud as an admin and find&enable it in the list of apps.
+
+This app is currently not published in the Nextcloud app store.
 
-Private files are also hosted by this app, but of course only to users that are logged in and
-have permission to read them. For example, a file named `test.html` in the Documents folder would be
-available at `https://my-nextcloud/apps/raw/files/Documents/test.html`.
 
 [Content-Security-Policy]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy

appinfo/info.xml

@@ -17,11 +17,11 @@ contain (of course, the downside is that your web pages cannot use javascript fo
 
 The common usage is to first share a file and enable public access through a link. If the share link
 is `https://my-nextcloud/s/aBc123DeF456xyZ`, then this app will provide access to the raw file at
-`https://my-nextcloud/apps/raw/s/aBc123DeF456xyZ`.
+`https://my-nextcloud/apps/raw/s/aBc123DeF456xyZ`.  If the share is a folder, the files within it
+are accessible as e.g. `https://my-nextcloud/apps/raw/s/aBc123DeF456xyZ/path/to/file`.
 
-Private files are also hosted by this app, but of course only to users that are logged in and
-have permission to read them. For example, a file named `test.html` in the Documents folder would be
-available at `https://my-nextcloud/apps/raw/files/Documents/test.html`.
+A user can also access their own private files. For example, a file named `test.html` in anansi's
+Documents folder would be available at `https://my-nextcloud/apps/raw/u/anansi/Documents/test.html`.
 
 [Content-Security-Policy]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
 </description>