Add explanation of windows upgrade details.

examples/scripts/UpgradeToPS3.ps1

-# Upgrade to PowerShell 3.0
+
+# Powershell script to upgrade a PowerShell 2.0 system to PowerShell 3.0
+#
+# some Ansible modules that may use Powershell 3 features, so systems may need
+# to be upgraded.  This may be used by a sample playbook.  Refer to the windows
+# documentation on docs.ansible.com for details.
+# 
+# - hosts: windows
+#   tasks:
+#     - script: upgrade_to_ps3.ps1
 
 # Get version of OS
 
@@ -68,4 +77,4 @@ else
 $FileName = $DownLoadUrl.Split('/')[-1]
 download-file $downloadurl "$powershellpath\$filename"
 
-."$powershellpath\$filename" /quiet /log "C:\powershell\install.log"
\ No newline at end of file
+."$powershellpath\$filename" /quiet

library/windows/win_get_url

@@ -31,4 +31,4 @@ $ ansible -i hosts -c winrm -m win_get_url -a "url=http://www.example.com/earthr
   win_get_url:
     url: 'http://www.example.com/earthrise.jpg'
     dest: 'C:\Users\RandomUser\earthrise.jpg'
-'''
\ No newline at end of file
+'''