* Fixes the npm package example to state 'npm' vs 'gem'
* Fixes powershell resource to specify the resource instead of 'script'
* Updates the example to rename variable 'script'
While ruby would allow the local variable and the presence of the InSpec method at the same time I think that it is bad form. Other resource examples also use 'script'.
* Changes pip to show generic example
Other package like resources show a generic example in the default.
Signed-off-by: Franklin Webber <franklin@chef.io>
