Added portable Windows demo

doc/installation.md

@@ -101,7 +101,7 @@ You just need to remove the OpenPose folder, by default called `openpose/`. E.g.
     1. [CUDA 8](https://developer.nvidia.com/cuda-downloads): Install it on the default location, C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0. Otherwise, modify the Visual Studio project solution accordingly.
     2. [cuDNN 5.1](https://developer.nvidia.com/cudnn): Once you have downloaded it, just unzip it and copy (merge) the contents on the CUDA folder, C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0.
     3. [Microsoft Visual C++ 2015 Redistributable](https://www.microsoft.com/en-us/download/details.aspx?id=53587) (lighter) or Microsoft Visual Studio 2015 (only if you intend to use the library).
-2. Download the portable demo from: _link coming soon_.
+2. Download the portable demo from: [posefs1.perception.cs.cmu.edu/OpenPose/openpose_1.0.0rc2.zip](http://posefs1.perception.cs.cmu.edu/OpenPose/openpose_1.0.0rc2.zip).
 
 ### Installation - Library
 1. Install the pre-requisites: