Revise README with project updates and improvements

Updated the README to reflect the development of the IDC REST API v3 and MCP server, including user feedback and improvements for clinical data support.

Author: fedorov

PW45_2026_Boston/Projects/RedesignedRestApiAndMcpServerForImagingDataCommons/README.md

@@ -73,7 +73,12 @@ IDC already offers a customized agent skill in [https://github.com/ImagingDataCo
      If there are specific steps that you could not complete then you can describe them here, too. -->
 
 
-1. Describe specific steps you **have actually done**.
+1. Developed v3 of IDC REST API and the initial version of MCP server - [repo and overview](https://github.com/fedorov/IDC-API/blob/idc-api-v3/docs/user-guide.md)
+2. Shared MCP server endpoint with interested users, collected feedback (in particular, identified the need to improve support of clinical data)
+3. Improved MCP integration with Martin's project [https://github.com/mbellehumeur/vtk-js/pull/1](https://github.com/mbellehumeur/vtk-js/pull/1)
+4. Implemented support for clinical tables query.
+  * [public linkt to a conversation with Claude](https://claude.ai/share/85b9d201-1f85-4492-9b9b-311bf98b09f5) demonstrating the capabilities of clinical data exploration with the updated IDC MCP server
+5. Summarized (but not benchmarked!) differences between using "vanilla" Claude vs Claude + IDC skill vs Claude + IDC MCP.
 
 
 
@@ -82,6 +87,12 @@ IDC already offers a customized agent skill in [https://github.com/ImagingDataCo
 
 <!-- Add pictures and links to videos that demonstrate what has been accomplished. -->
 
+Snippets from [this conversation](https://claude.ai/share/85b9d201-1f85-4492-9b9b-311bf98b09f5)
+
+<img width="662" height="706" alt="image" src="https://github.com/user-attachments/assets/ca1b293f-ff98-4081-93be-1d678941ad77" />
+
+<img width="670" height="721" alt="image" src="https://github.com/user-attachments/assets/3b1a8db0-ab9b-4f6b-b9c0-ad1ddd68a667" />
+
 <img width="1134" height="639" alt="image" src="https://github.com/user-attachments/assets/83ba0f17-ed92-4066-85f2-cfcd0a4eeb7a" />