(MODULES-4649) Add better examples
(MODULES-4649) Add better examples

Previously the examples in the IIS Readme were fairly trivial.  This commit
adds a more fully formed example, including creating and setting permissions
on the website directory.

jpogran/puppetlabs-iis,jpogran/puppetlabs-iis,puppetlabs/puppetlabs-iis,puppetlabs/puppetlabs-iis