[Question] Adding params for more control on appearance-template and filenames on user side #38

Hey Matt,

Thanks for the nice work.

• I was wondering if you could add a couple more params in the argparser in order for the user to submit or provide their own template file if they want to?

• Also, the ability when exporting to multiple files to choose the final filename sting? For instance, instead of date.issue-number.issue.issue-status.md the user might need to export multiple files using a string like issue-number.issue-title, but the issue title requires some processing before using it directly since it contains spaces.

• Ideally it would be nice if the user could pass a dynamic string like issue-number.issue-title.replace(" ", "_").lower() which would be expanded and executed by gh2md to create multiple files where each filename is comprised by the issue number and issue title after replacing spaces with underscores and lowercasing the letters?