Add chapter about sorting

Signed-off-by: trivernis <trivernis@protonmail.com>

_docs/20_repositories.md

@@ -23,7 +23,7 @@ After that you can save the configuration by clicking on *Save*.
 When choosing the *Remote* type you have to specify the IP address and port of the remote repository. 
 You can check connection to make sure the entered address is correct.
 Remote repositories are repositories that have a daemon running with TCP enabled and a fixed port.
-You can read more about configuring daemons and repositories [here](50_repo_configuration).
+You can read more about configuring daemons and repositories [here](90_repo_configuration).
 
 After adding a repository it should appear in the repository overview.
 

_docs/60_sorting.md

@@ -0,0 +1,38 @@
+---
+layout: doc
+title: Sorting
+sort_index: 60
+---
+
+After searching you might want to change the order in which search entries appear.
+To do that you can apply a sorting configuration to the search. By default
+results are sorted by the time they were imported but this can be changed
+by clicking on the sort button.
+
+![](/assets/images/mediarepo-sort-button.png)
+
+This will open up a dialog with the current sorting configuration.
+
+![](/assets/images/sort-dialog.png)
+
+The key used for sorting can be configured in the first drop-down (1). You can
+specify which sort direction should be applied for the specific key (2). When selecting
+the *Namespace* key you have to additionally provide the namespaces that shuld be used (3).
+Sorting by namespace uses the tags with the specific namespace assigned to the image as
+sorting values. For example if you've got files that have tags of the `page` namespaced
+assigned like `page:1`, `page:2`, `page:3` and so on you can sort by the `page` namespace
+to get them in the correct order. The value is first interpreted as a numerical value and
+if that fails as a string value and sorted alphabetically.
+To add new search entries you can use the plus button (5). Entries can be removed by using
+the minus button (4).
+You can change the order in which search entries are applied by dragging and dropping entries
+in the right position with their handles (6). If you want to save a specific sorting configuration
+so that it doesn't need to be configured for each page you can use the *Save new* button in the bottom left (7).
+
+![](/assets/images/sort-dialog-preset.png)
+
+This will create a new entry which can be selected via a drop-down (11) at the top which is only visible
+when there's sorting configurations stored in the repository. The selected configuration can also be overwritten
+with the *Save* button (9) or deleted with the *Delete* button (10).
+
+When you're satisfied with the sorting configuration you can apply it by pressing the *Sort* button (8).