fix: documentation and trademark updates

expansion-packs/bmad-creative-writing/workflows/book-cover-design-workflow.md

@@ -1,3 +1,5 @@
+<!-- Powered by BMAD™ Core -->
+
 # Book Cover Design Assets
 
 # ============================================================

expansion-packs/bmad-creative-writing/workflows/novel-greenfield-workflow.yaml

@@ -1,3 +1,4 @@
+# <!-- Powered by BMAD™ Core -->
 workflow:
   id: novel-greenfield-workflow
   name: Greenfield Novel Workflow

expansion-packs/bmad-creative-writing/workflows/novel-serial-workflow.yaml

@@ -1,3 +1,4 @@
+# <!-- Powered by BMAD™ Core -->
 ---
 workflow:
   id: novel-serial-workflow

expansion-packs/bmad-creative-writing/workflows/novel-snowflake-workflow.yaml

@@ -1,3 +1,4 @@
+# <!-- Powered by BMAD™ Core -->
 ---
 workflow:
   id: novel-snowflake-workflow

expansion-packs/bmad-creative-writing/workflows/novel-writing.yaml

@@ -1,9 +1,10 @@
+# <!-- Powered by BMAD™ Core -->
 # workflows/novel-writing.yaml
 name: novel-writing
 title: Novel Writing Workflow
 description: |
   End‑to‑end pipeline for drafting, revising, and polishing a full‑length novel
-  using the BMAD Creative Writing team.
+  using the BMAD™ Creative Writing team.
 
 triggers:
   - command: /novel

expansion-packs/bmad-creative-writing/workflows/screenplay-development.yaml

@@ -1,3 +1,4 @@
+# <!-- Powered by BMAD™ Core -->
 # workflows/screenplay-development.yaml
 name: screenplay-development
 title: Screenplay Development Workflow

expansion-packs/bmad-creative-writing/workflows/series-planning.yaml

@@ -1,3 +1,4 @@
+# <!-- Powered by BMAD™ Core -->
 # workflows/series-planning.yaml
 name: series-planning
 title: Series Planning Workflow

expansion-packs/bmad-creative-writing/workflows/short-story-creation.yaml

@@ -1,3 +1,4 @@
+# <!-- Powered by BMAD™ Core -->
 # workflows/short-story-creation.yaml
 name: short-story-creation
 title: Short Story Creation Workflow