diff --git a/_config.yml b/_config.yml
index 756fac4..1dcf9f2 100644
--- a/_config.yml
+++ b/_config.yml
@@ -272,7 +272,7 @@ links:
       demo26: "• [Demo](https://data8.datahub.berkeley.edu/hub/user-redirect/git-pull?repo=https://github.com/data-8/materials-fa24&urlpath=tree/materials-fa24/lec/lec26/lec26.ipynb&branch=main)"
       demo27: "• [Demo](https://data8.datahub.berkeley.edu/hub/user-redirect/git-pull?repo=https://github.com/data-8/materials-fa24&urlpath=tree/materials-fa24/lec/lec27/lec27.ipynb&branch=main)"
       demo28: "• [Demo](https://data8.datahub.berkeley.edu/hub/user-redirect/git-pull?repo=https://github.com/data-8/materials-fa24&urlpath=tree/materials-fa24/lec/lec28/lec28.ipynb&branch=main)"
-      demo29: ""
+      demo29: "• [Demo](https://data8.datahub.berkeley.edu/hub/user-redirect/git-pull?repo=https://github.com/data-8/materials-fa24&urlpath=tree/materials-fa24/lec/lec29/lec29.ipynb&branch=main)"
       demo30: ""
       demo31: ""
       demo32: ""
@@ -313,7 +313,7 @@ links:
       slide26: "[Slides](https://docs.google.com/presentation/d/1ueDiwWxuY_4-57YtH9ARXIHiu-WGekHXnmzJPIvFFXM/edit?usp=sharing)"
       slide27: "[Slides](https://docs.google.com/presentation/d/1GnlnLFhAHzd2Dkxqg4CpRymtEYD3gUdlZchshyGTJdg/edit?usp=sharing)"
       slide28: "[Slides](https://docs.google.com/presentation/d/1ihJOyqrP_SPNaWB1fuXMZcPhFlxMw2kcsTOtYa1rg0Y/edit?usp=sharing)"
-      slide29: ""
+      slide29: "[Slides](https://docs.google.com/presentation/d/1WpeRg2crC9abFjjXyaEpSWO7KysqfsalH7Cy3lml3zY/edit?usp=sharing)"
       slide30: ""
       slide31: ""
       slide32: ""