doc: Write xfconf storage tutorial section

Author: eiskasten

doc/tutorials/README.md

@@ -53,6 +53,7 @@ already somehow integrated with Elektra.
 - [Encrypt Configuration](crypto.md)
 - [Install Configuration Files](install-config-files.md)
 - [Write a specification for dockerd](dockerd-specification.md)
+- [Configure Xfconf Applications](xfconf.md)
 
 ## Elektra Developers
 

doc/tutorials/xfconf.md

@@ -0,0 +1,58 @@
+# Using Xfconf with Elektra
+
+Elektra provides the ability to work hand in hand with Xfconf.
+Depending on what you want, you can use Elektra in different ways.
+
+## Altering Existing Xfconf Settings
+
+Elektra provides an Xfconf storage plugin that allows you to change all the configuration settings made by Xfconf.
+
+To access the properties which are owned by Xfconf, the appropriate channel must be mounted.
+Some known channel names are
+
+- **Thunar**: thunar
+- **Xfwm**: xfwm4
+- **Xfce Panel**: xfce4-panel
+
+Assuming that the properties of Thunar are to be changed, the following command can be used to mount the channel.
+
+```shell
+kdb mount -R noresolver none /sw/xfce4/thunar xfconf channel=thunar
+```
+
+**Warning**: The following operations will cause permanent changes to your system, please handle with care.
+
+Thunar should now be ready to be configured by Elektra.
+For example, the following command can be used to use single clicks instead of double clicks.
+
+```shell
+# Setting the value to `false` beforehand 
+xfconf-query -c thunar -p /misc-single-click -s false -t bool -n
+
+kdb set /sw/xfce4/thunar/misc-single-click TRUE
+#> Set string to "TRUE"
+#> Using name dir:/sw/xfce4/thunar/misc-single-click
+```
+
+The result can then be verified using both Elektra and `xfconf-query`.
+
+```shell
+kdb get /sw/xfce4/thunar/misc-single-click
+#> TRUE
+ 
+xfconf-query -c thunar -p /misc-single-click
+#> true
+```
+
+Using a text editor, you can also view the changes in the
+file `${XDG_CONFIG_HOME:-$HOME/.config}/xfce4/xfconf/xfce-perchannel-xml/thunar.xml`.
+
+When you are finished configuring the Xfce component, you should unmount the corresponding channel with the following command.
+
+```shell
+kdb umount /sw/xfce4/thunar/
+```
+
+## Replacing Xfconf with Elektra
+
+## Data-Types Used in Xfconf