try to fix deploy

Author: cmillion

.github/workflows/deploy.yml

@@ -6,14 +6,11 @@ on:
       - main
   workflow_dispatch:
 
-# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
 permissions:
   contents: read
   pages: write
   id-token: write
 
-# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
-# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
 concurrency:
   group: "pages"
   cancel-in-progress: false
@@ -36,6 +33,15 @@ jobs:
       - name: Build MyST site
         run: myst build --html
 
+      - name: List build output
+        run: |
+          echo "Contents of _build:"
+          ls -la _build/ || echo "_build directory not found"
+          echo "Contents of _build/html:"
+          ls -la _build/html/ || echo "_build/html directory not found"
+          echo "Looking for index.html:"
+          find _build -name "index.html" -type f || echo "No index.html found"
+
       - name: Copy CNAME to build directory
         run: cp CNAME _build/html/