diff --git a/book/extension_exercises/015.md b/book/extension_exercises/015.md
index 8307c81..60e6278 100644
--- a/book/extension_exercises/015.md
+++ b/book/extension_exercises/015.md
@@ -1,4 +1,4 @@
-# Exercise: Deploy Book Workflow
+# Deploy Book Workflow
 
 The **Deploy Book Workflow (DBW)** automatically builds and publishes your TeachBook whenever changes are pushed to your repository. If you started your book from the TeachBooks Template, this workflow is already included. 
 
@@ -47,10 +47,10 @@ Branch-specific builds are useful for previewing work in progress without affect
 |-----------------------|-------------|-------------------------------------------------------------------------|
 | `PRIMARY_BRANCH`      | `main`      | Which branch appears at the root URL.                                   |
 | `BEHAVIOR_PRIMARY`    | `redirect`  | How the root URL behaves: `redirect`, `copy`, or `move`.                 |
-| `BRANCH_ALIASES`      | *(blank)*   | Space-separated list of aliases (custom URLs) for branches.              |
+| `BRANCH_ALIASES`      |    | Space-separated list of aliases (custom URLs) for branches.              |
 | `BRANCHES_TO_DEPLOY`  | `*`         | Which branches are deployed (all by default).                            |
-| `BRANCHES_TO_PREPROCESS` | *(blank)* | Branches preprocessed with TeachBooks (e.g. remove draft-only content).  |
-| `BRANCHES_ARCHIVED`   | *(blank)*   | Adds a banner to old versions marking them as archived.                  |
+| `BRANCHES_TO_PREPROCESS` |  | Branches preprocessed with TeachBooks (e.g. remove draft-only content).  |
+| `BRANCHES_ARCHIVED`   |   | Adds a banner to old versions marking them as archived.                  |
 ```
 
 ```{note}