ci: Deploy pages.

Signed-off-by: Jason Volk <jason@zemos.net>

.github/workflows/publish.yml

@@ -43,6 +43,23 @@ on:
       dockerhub_token:
 
 jobs:
+  documents:
+    if: >
+      !failure() && !cancelled()
+      && inputs.machines
+      && github.ref == 'refs/heads/main'
+
+    name: Documents
+    runs-on: self-hosted
+    permissions:
+      pages: write
+      id-token: write
+
+    steps:
+      - id: book
+        name: Book
+        uses: actions/deploy-pages@v4
+
   containers:
     if: >
       !failure() && !cancelled()