ci: add content changes section

Author: sgratzl

.github/release-drafter.yml

@@ -1,16 +1,17 @@
 name-template: "v$RESOLVED_VERSION"
 tag-template: "v$RESOLVED_VERSION"
 categories:
+  - title: "📚 Content Changes"
+    labels:
+      - "blog"
+      - "documentation"
   - title: "🚀 Features"
     labels:
       - "enhancement"
       - "feature"
   - title: "🐛 Bugs Fixes"
     labels:
       - "bug"
-  - title: "Documentation"
-    labels:
-      - "documentation"
   - title: "🧰 Development"
     labels:
       - "chore"