Add links for official download sources

I see that this module has been available for download from other sources too, while respecting the license. I don't have anything against this and I'm happy that people got interest in it, but I do want to have a notice about the officially maintained sources just to feel safer.

README.md

@@ -17,21 +17,27 @@
 Run `su` to be able to access and use the `isodrive` command.
 
 ```
+Usage:
 isodrive [FILE]... [OPTION]...
 Mounts the given FILE as a bootable device using configfs.
-Run without any arguments to unmount any mounted files and to display this help message.
+Run without any arguments to unmount any mounted files and display this help message.
 
 Optional arguments:
 -rw		Mounts the file in read write mode.
 -cdrom		Mounts the file as a cdrom.
+-configfs	Forces the app to use configfs.
+-usbgadget	Forces the app to use sysfs.
 ```
 
 ## Os Support
 * _Should support almost every bootable OS images, but for those who don't work or need extra steps, are documented in the [WIKI](https://github.com/nitanmarcel/isodrive/wiki)_
 
+## Download
+The only officially maintained versions by me are available on [github releases](https://github.com/nitanmarcel/isodrive-magisk/releases/) and [Magisk-Modules-Alt-Repo](https://github.com/Magisk-Modules-Alt-Repo). I assume no liability for any downloads  originating from unofficial sources.
+
 ## Source Code
 * https://github.com/nitanmarcel/isodrive-magisk
-
+* 
 ## Credits
 
 Inspired by https://github.com/fredldotme/ISODriveUT

magisk-module/module.prop

@@ -1,6 +1,6 @@
 id=isodrive
 name=Isodrive
 author=Marcel Alexandru Nitan
-version=1.2
-versionCode=12
+version=2.1
+versionCode=21
 description=Use your mobile device to boot Linux distributions/ISO files on your PC

native/jni/Android.mk

@@ -8,6 +8,7 @@ LOCAL_MODULE := isodrive
 LOCAL_SRC_FILES := \
 	isodrive/src/util.cpp \
 	isodrive/src/configfsisomanager.cpp \
+	isodrive/src/androidusbisomanager.cpp \
 	isodrive/src/main.cpp
 
 include $(BUILD_EXECUTABLE)