Add March 2026 author update to interventional_distribution notebook

Made-with: Cursor

Author: drbenvincent

examples/causal_inference/interventional_distribution.ipynb

@@ -1753,7 +1753,8 @@
       },
       "source": [
         "## Authors\n",
-        "- Authored by [Benjamin T. Vincent](https://github.com/drbenvincent) in July 2023"
+        "- Authored by [Benjamin T. Vincent](https://github.com/drbenvincent) in July 2023\n",
+        "- Updated by [Benjamin T. Vincent](https://github.com/drbenvincent) in March 2026"
       ],
       "id": "f17a9b3b-a3c2-4919-893b-569049db03d6"
     },

examples/causal_inference/interventional_distribution.myst.md

@@ -582,6 +582,7 @@ Readers looking to learn more are suggested to check out the cited blog posts as
 
 ## Authors
 - Authored by [Benjamin T. Vincent](https://github.com/drbenvincent) in July 2023
+- Updated by [Benjamin T. Vincent](https://github.com/drbenvincent) in March 2026
 
 +++