Added missing comma from DscResource.Common.psm1 in Export-ModuleMember

[PlagueHO]

Pull Request (PR) description

Added missing comma from DscResource.Common.psm1 in Export-ModuleMember. Isn't actually a bug and doesn't fail tests, but added for consistency.

Also fixed a couple of markdown issues in the PULL_REQUEST_TEMPLATE.md.

This Pull Request (PR) fixes the following issues

Task list

• [x] Added an entry under the Unreleased section of the change log in the TEMPLATE_README.md. Entry should say what was changed, and how that affects users (if applicable).
• [ ] Resource documentation added/updated in README.md.
• [ ] Resource parameter descriptions added/updated in README.md, schema.mof and comment-based help.
• [ ] Comment-based help added/updated.
• [ ] Localization strings added/updated in all localization files as appropriate.
• [ ] Examples appropriately added/updated.
• [ ] Unit tests added/updated. See DSC Resource Testing Guidelines.
• [ ] Integration tests added/updated (where possible). See DSC Resource Testing Guidelines.
• [x] New/changed code adheres to DSC Resource Style Guidelines and Best Practices.

@Johlju - would you mind reviewing when you have time. Just a tiny one.

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This change is