Improve Markdown output for enum expansion

[atmamont]

Summary

Here is an partial example of enum change when one enum case is being expanded. New enum cases are not displayed as they usually go into the "Added" section.

// From
case boleto

// To
@available(*, deprecated, renamed: "boletoBancarioSantander", message: "Use 'boletoBancarioSantander' instead. Consider 'boletoBancario' as the default payment method for Boleto Bancario.") case boleto

Screenshot of how it looks as Github comment

Proposed solution

Add newline break between annotation and case itself:

// From
case boleto

// To
@available(*, deprecated, renamed: "boletoBancarioSantander", message: "Use 'boletoBancarioSantander' instead. Consider 'boletoBancario' as the default payment method for Boleto Bancario.") 
case boleto

Describe alternatives you've considered
The only alternative at the moment is to pay 100% attention to the change set, follow and dissect every change.

[goergisn]

Hi, @atmamont
thank you for the suggestion!

Here the PR that adds the functionality: #70