(MODULES-7574) Mergeback for 0.6.0 release

With native Puppet types (including the `dsc_*` types), we're used to being able use `puppet describe` to explore the types and discover available parameters. When porting from `dsc` to `dsc_lite`, the lack of that ability might be a sticking point, especially for admins who primarily administer Linux boxes and aren't comfortable enough with PowerShell to know how to do this on their own.

To mitigate that, we'll just show an example in the REAME.

(Can someone with an actual Windows box correct this example to be consistent with the `WindowsFeature` code snippets that follow?)

Add an example of identifying available parameters

This commit adds a note to the readme about advanced users.

(MODULES-7556) Note added to README

The previous code example used a shorthand PowerShell syntax that is not
best practice to put into documentation. It also used a PowerShell DSC
resource that is not installed by default on Windows machines.

…ode-example

(MAINT) Improve Readme Code Example

pdksync - (MODULES-7658) use beaker3 in puppet-module-gems

This commit updates the CHANGELOG and metadata.json for the 1.0.0
supported release.

(MODULES-7556) Release 1.0.0