Update homework with loom video

MIDTERM_DELIVERABLES.md

@@ -91,4 +91,8 @@ It's possible to modify this process to scrape a selection of sites, providing a
   a. Improved design analysis
   b. Scrape designs from more sites
   c. Working graph with separate agent functions
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+#. 8 - Demo Time!
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+[Loom Video]([https://huggingface.co/Technologic101/css_zen_design_embeddings](https://www.loom.com/share/174e34a28a4a4913a930f2c9dabb6bee))
+