Add a 'description' for folder and files at the top of the page, just below the folder/file name.
A description of the folder at the top of the page will save time for our users, stakeholders and team members. It can be used as a way to describe what a user can expect to find in a given folder; and if this option extends in all sub-folders and files, it can help save a lot of time, bandwidth, and storage.
The following format example will work well:
Account name > Project name > Research files
In this folder, you will find data about the project research and all the research files that are available. For any information on the research for this project please contact email@example.com
This folder is further divided into past and ongoing research files.