added what is a apk

docs/android/miscellaneous.md

@@ -4,6 +4,10 @@ title: Miscellaneous
 
 # Miscellaneous
 
+::: info What is an APK?
+An APK file is an application made for Android devices. The file format was created by Android. To install an APK, you have to turn on **Install Apps from Unknown Sources** in your phone's settings, download the apk, and double click it to open the installation page, or you can alternatively, use [adb](https://developer.android.com/tools/adb) to install Minecraft for Android by doing **adb install {replace this with the APK's filename}.apk**.
+:::
+
 ## Minecraft: Dungeons
 
 * [Apkvision](https://apkvision.org/games/role-playing/minecraft-dungeons-64159/) - An unofficial 100% safe to use Minecraft: Dungeons .apk file