Add documentation

[eirini-zormpa]

About

There is a lot of useful material in this repository, but it is currently difficult to navigate due to the lack of documentation.

To do:

• Add a description of the project in the README
• Add an explanation of the naming convention for the folders
• Organise the phenotypes in folders to make it easier to get an idea of the contents
• Add information on how to use the lists

Updates

• Created a fork of the repo into the RSF organisation to make changes