Merge pull request #2779 from sigmabeta/android-sys-rq

Android: Add system requirements to Readme.md

Readme.md

@@ -9,6 +9,7 @@ the terms of the GNU General Public License, version 2 or later (GPLv2+).
 Please read the [FAQ](https://dolphin-emu.org/docs/faq/) before using Dolphin.
 
 ## System Requirements
+### Desktop
 * OS
     * Microsoft Windows (Vista or higher).
     * Linux.
@@ -21,6 +22,17 @@ Please read the [FAQ](https://dolphin-emu.org/docs/faq/) before using Dolphin.
     * A reasonably modern graphics card (Direct3D 10.0 / OpenGL 3.0).
     * A graphics card that supports Direct3D 11 / OpenGL 4.4 is recommended.
 
+### Android
+* OS
+    * Android 5.0 (Lollipop) or higher.
+* Processor
+    * An ARM processor with support for 64-bit applications. (An Intel x86 processor could also work in theory, but no known x86 devices support 64-bit applications.)
+* Graphics
+    * A graphics processor that supports OpenGL ES 3.0 or higher. Performance varies heavily with [driver quality](https://dolphin-emu.org/blog/2013/09/26/dolphin-emulator-and-opengl-drivers-hall-fameshame/).
+    * A graphics processor that supports standard desktop OpenGL features is recommended for best performance.
+
+Dolphin can only be installed on devices that satisfy the above requirements. Attempting to install on an unsupported device will fail and display an error message.
+
 ## Building for Windows
 Use the solution file `Source/dolphin-emu.sln` to build Dolphin on Windows.
 Visual Studio 2013 is a hard requirement since previous versions don't support