update directory structure

README.md

@@ -38,7 +38,12 @@ The XNAT Open Data Server is being developed by the [Open Data Team](https://cas
 
 We need researchers to walk through these documents with their existing or hypothetical research projects. Help us to identify gaps, issues and solutions!
 
-***Add links to docs here***
+Take a look at these documents:
+- [Overview of the decision tree in its current state](./docs/overview/overview.md)
+- [Appendices and notes](./docs/WIN-data-sharing-decision-tree-Appendicies.md)
+- [Working diagrams of decision tree](./docs/decision-tree.md)
+
+If you'd like to comment on these documents, please submit an [issues](https://git.fmrib.ox.ac.uk/open-science/data-sharing-decision-tree/-/issues) describing your feedback. We'll be in touch to discuss your suggestions further. We will also be organising a group workshop, which you are invited to attend. Stay tuned for details!
 
 ## Contact us