Add chocolatey example

windows/examples/Chocolatey.md

-# Sophisticated example of using Chocolatey
+# Examples
+* Sophisticated example of using Chocolatey
 
 https://weblog.west-wind.com/posts/2017/Jan/29/Creating-a-portable-and-embedded-Chocolatey-Package
 git clone https://github.com/rickstrahl/MarkdownMonster
 ls MarkdownMonster/Install/Chocolatey/{markdownmonster.nuspec,tools/chocolateyInstall.ps1}
 
+* Install windirstat from url example
+see windirstat/windirstat.nuspec
+choco.exe install -fdv .\windirstat.nuspec
+
 # Chocolatey documentation
 https://www.chocolatey.org/docs/how-to-setup-offline-installation
 https://github.com/chocolatey/choco/wiki/CommandsInstall
 https://chocolatey.org/docs/create-packages
 
+https://chocolatey.org/blog/create-chocolatey-packages
+https://github.com/chocolatey/choco/wiki/HelpersInstallChocolateyPackage
+https://github.com/chocolatey/choco/wiki/HelpersInstallChocolateyInstallPackage
+

windows/examples/windirstat/Readme.md

+# tldr - install/test it
+choco.exe install -fdv .\windirstat.nuspec
+
+# Sources
+https://github.com/ferventcoder/chocolatey-packages/tree/master/manual/windirstat
+https://github.com/chocolatey/choco/wiki/CreatePackages
+https://chocolatey.org/blog/create-chocolatey-packages
+https://github.com/chocolatey/choco/wiki/HelpersInstallChocolateyInstallPackage
+https://github.com/chocolatey/choco/wiki/HelpersInstallChocolateyPackage
+

windows/examples/windirstat/tools/chocolateyInstall.ps1

+$packageName = 'windirstat'
+$fileType = 'exe'
+$url = 'http://prdownloads.sourceforge.net/windirstat/windirstat1_1_2_setup.exe'
+$silentArgs = '/S'
+
+Install-ChocolateyPackage $packageName $fileType $silentArgs $url

windows/examples/windirstat/windirstat.nuspec

+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+  <metadata>
+    <id>windirstat</id>
+    <version>1.1.2.20161210</version>
+    <owners>WDS Team, Rob Reynolds</owners>
+    <title>WinDirStat (Install)</title>
+    <authors>Bernhard Seifert, Oliver Schneider, WDS Team</authors>
+    <copyright>© 2003-2007 WDS Team</copyright>
+    <projectUrl>https://windirstat.net/</projectUrl>
+    <licenseUrl>http://www.gnu.org/licenses/gpl-2.0.html</licenseUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <projectSourceUrl>https://bitbucket.org/windirstat/windirstat</projectSourceUrl>
+    <docsUrl>https://windirstat.net/index.html</docsUrl>
+    <bugTrackerUrl>https://bitbucket.org/windirstat/windirstat/issues?status=new&amp;status=open</bugTrackerUrl>
+    <tags>windirstat disk usage admin</tags>
+    <summary>WinDirStat - Windows Directory Statistics</summary>
+    <description>WinDirStat is a disk usage statistics viewer and cleanup tool for Microsoft Windows.</description>
+    <!-- =============================== -->
+  </metadata>
+  <files>
+    <file src="tools\**" target="tools" />
+  </files>
+</package>
+