Updated Building for macOS (markdown)

Building-for-macOS.md

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+### Dependencies:
+
+It's recommended that you use [homebrew](http://brew.sh/) to install dependencies.
+You'll need to download and install the following to build yuzu:
+
+* [pkg-config](https://www.freedesktop.org/wiki/Software/pkg-config/) (`brew install pkgconfig`)
+* [SDL2](https://www.libsdl.org/download-2.0.php) (`brew install sdl2`, or download [this dmg](https://www.libsdl.org/release/SDL2-2.0.4.dmg))
+* [Qt5](https://www.qt.io/download/) (`brew install qt5`) (**Note:** If you have Qt4 installed, then you will need to remove it before building. `brew unlink qt4`)
+* [CMake](https://cmake.org/) (`brew install cmake`)
+* A recent version of Xcode and the Xcode command line tools
+
+### Cloning yuzu in Git:
+
+```
+git clone --recursive https://github.com/yuzu-emu/yuzu
+cd yuzu
+git submodule update --init --recursive
+```
+
+### Using CMake:
+
+First of all, you have to tell CMake where your Qt5 is installed (add this line to ~/.profile if you want to make this permanent.):
+
+```
+export Qt5_DIR=$(brew --prefix)/opt/qt5
+```
+
+Now you can generate makefiles for the build:
+```
+export MACOSX_DEPLOYMENT_TARGET=10.9
+mkdir build
+cd build
+cmake .. -DUSE_SYSTEM_CURL=ON -DCMAKE_OSX_ARCHITECTURES="x86_64;x86_64h" -DCMAKE_BUILD_TYPE=Release
+```
+
+This builds a fat binary that has slices targeting early and late x64 machines.
+
+### Building yuzu
+
+```
+make -j4
+```
+
+A `yuzu_qt.app` application bundle will now be present under `build/src/yuzu_qt/`. Note that this is non-portable and only works on your machine.
+
+For portability of the appbundle between machines please refer to [this script](https://github.com/yuzu-emu/yuzu/blob/master/.travis/macos/upload.sh).