ISSUE_TEMPLATE: Add a note that sensitive information can be obfuscated

[johlju]

Details of the scenario you tried and the problem that is occurring

In the issue template, there is not a mention about that sensetive information can (and should) be obfuscated. For example when posting the configuration.

The DSC configuration that is using the resource (as detailed as possible)

n/a

Version of the operating system and PowerShell the target node is running

n/a

SQL Server edition and version the target node is running

n/a

What SQL Server PowerShell modules, and which version, are present on the target node.

n/a

Version of the DSC module you're using, or write 'dev' if you're using current dev branch

Dev