Add vcpkg installation instructions for wxMSW

Closes https://github.com/wxWidgets/wxWidgets/pull/1777

docs/msw/install.md

@@ -330,6 +330,24 @@ more details)
 
 
 
+Installing and building wxWidgets using vcpkg         {#msw_install_and_build}
+=============================================
+
+You can download and install wxWidgets 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 wxwidgets
+
+The wxWidgets 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 If the version is out of date, please [create an issue or pull request]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.
+
+
+
 Configuring the Build                  {#msw_build_config}
 ================================================================