android: noted simplemarkdown

wiki/android.md

@@ -7,14 +7,14 @@ It is designed primarily for mobile devices with touch screens like tablets or s
 ## Managing the Data
 
 The data and files stored on Android
-[smart devices](/wiki/smart_devices.md#smartphones-and-tablet-computers) are sometimes needed on
+[smart devices](/wiki/smart_device.md#smartphones-and-tablet-computers) are sometimes needed on
 computers.
 
 For [Windows](/wiki/windows.md) this can easily be achieved by connecting it via USB.
 No further software is needed as the device manager handles the phone correctly most of the times.
 
 For [Linux-based systems](/wiki/linux.md) the
-[device](/wiki/smart_devices.md#smartphones-and-tablet-computers) also has to be connected to the
+[device](/wiki/smart_device.md#smartphones-and-tablet-computers) also has to be connected to the
 computer.
 But in this case also a software is needed to [mount it](/wiki/linux/disk-management.md#mounting),
 this software/program is called [android-file-transfer](/wiki/linux/android-file-transfer.md).
@@ -28,7 +28,7 @@ A free and open-source alternative to it is [F-Droid](/wiki/android/f-droid.md)
 open-source software.
 
 A list of open-source software options is also available on Alberto Mosconis
-[Github](/wiki/git.md#server-with-web-interface) repository
+[Github](/wiki/git_%28general%29.md#server-with-web-interface) repository
 [foss apps](https://github.com/albertomosconi/foss-apps/tree/main).
 
 Additionally open-source apps can be installed from source using
@@ -43,6 +43,8 @@ This section addresses various useful applications.
   storage.
 - [Markor](https://github.com/gsantner/markor) is a text editor supporting
   [Markdown](/wiki/markup_language.md)
+- [SystemUI Tuner](https://play.google.com/store/apps/details?id=com.zacharee1.systemuituner) is an
+  application that allows various small tweaks for the Android user interface.
 - [SimpleMarkdown](https://f-droid.org/packages/com.wbrawner.simplemarkdown.free/) is another text
   editor made for Markdown. It does work a bit better with a [NextCloud](/wiki/nextcloud.md).
 
@@ -101,7 +103,7 @@ It is possible that some custom ROMs require the user to
 
 Unlocking the bootloader can be a bit challenging for some vendors especially.
 
-For [smartphones and tablets](/wiki/smart_devices.md#smartphones-and-tablet-computers) made by
+For [smartphones and tablets](/wiki/smart_device.md#smartphones-and-tablet-computers) made by
 Xiaomi there are some steps that have to be done to unlock the bootloader.
 This section is based on an
 [article about unlocking the bootloader](https://new.c.mi.com/global/post/101245) on Xiaomi