docs: known client, ds user guide

README.md

@@ -9,6 +9,7 @@ The shared styles for TACC WMA Workspace Portals & Websites
 - [Core Portal], the base Portal code for TACC WMA CMS Websites
 - [TUP UI], the client code for TACC User Portal
 - [TACC Docs], the documentation for TACC
+    - and, indirectly, [DesignSafe User Guide]
 - [Tapis Authenticator], the web server for Tapis v3 auth
 - [Hazmapper], a TACC application for geospatial data
 
@@ -268,6 +269,7 @@ Core Styles was an effort to replace Bootstrap. Core Styles is compatible with B
 [core portal]: https://github.com/TACC/Core-Portal
 [tup ui]: https://github.com/TACC/tup-ui
 [tacc docs]: https://github.com/TACC/TACC-Docs
+[designsafe user guide]: https://github.com/DesignSafe-CI/DS-User-Guide
 [tapis authenticator]: https://github.com/tapis-project/authenticator
 [hazmapper]: https://github.com/TACC-Cloud/hazmapper