Add vcpkg installation instructions

Author: NancyLi1013

README.md

@@ -146,6 +146,16 @@ When you report USB issues, please attach relevant debug log from running the pr
 * Test OpenNI2 (optional)
 
     Copy freenect2-openni2.dll, and other dll files (libusb-1.0.dll, glfw.dll, etc.) in `install\bin` to `C:\Program Files\OpenNI2\Tools\OpenNI2\Drivers`. Then run `C:\Program Files\OpenNI\Tools\NiViewer.exe`. Environment variable `LIBFREENECT2_PIPELINE` can be set to `cl`, `cuda`, etc to specify the pipeline.
+* Install and build - Using vcpkg
+  You can download and install libfreenect2 using the [vcpkg](https://github.com/Microsoft/vcpkg) dependency manager:
+    ```
+    git clone https://github.com/Microsoft/vcpkg.git
+    cd vcpkg
+    ./bootstrap-vcpkg.sh
+    ./vcpkg integrate install
+    vcpkg install libfreenect2
+    ```
+  The libfreenect2 port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.
 
 ### MacOS