Rethink repo structure for easier organization

[iramosp]

Question from @jilaga on branding repo structure:

Do I go ahead and upload the Nebula flyers to the prints-and-digital/flyer folder on the repo or create a Nebula folder to house all the assets?
In case you are wondering why I have this dilemma, It is a constant battle with keeping the repo organized and making things accessible.

Not urgent, but good to get input:

• from @NPDebs on best practices for repo structure
• from @doaamkader as she'll be using existing assets & prob. planning on adding new ones