Update structure titles

docs/book/SUMMARY.md

@@ -22,15 +22,18 @@
 * [Customizing Arbitrary Fields](pages/app_customization/customizing_arbitrary_fields.md)
 * [Config Reflection](pages/app_customization/config_reflection.md)
 
-## App Composition and Deployment
+## App Structure
+
+* [Layout With Directories (Beta)](pages/app_composition_and_deployment/structure_directories.md)
+* [Layout With Branches (Alpha)](pages/app_composition_and_deployment/structure_branches.md)
+* [Layout With Repositories (Alpha)](pages/app_composition_and_deployment/structure_repositories.md)
+* [Multi-Tier](pages/app_composition_and_deployment/structure_multi_tier_apps.md)
+
+## App Deployment
 
 * [Diffing Local and Remote State](pages/app_composition_and_deployment/diffing_local_and_remote_resources.md)
 * [Accessing Multiple Clusters](pages/app_composition_and_deployment/accessing_multiple_clusters.md)
-* [Structure: Multi-Tier Apps](pages/app_composition_and_deployment/structure_multi_tier_apps.md)
-* [(Beta) Structure: Directories](pages/app_composition_and_deployment/structure_directories.md)
-* [(Alpha) Structure: Branches](pages/app_composition_and_deployment/structure_branches.md)
-* [(Alpha) Structure: Repositories](pages/app_composition_and_deployment/structure_repositories.md)
-* [(Alpha) Publishing Bases](pages/app_composition_and_deployment/publishing_bases.md)
+* [Publishing Config as Bases (Alpha)](pages/app_composition_and_deployment/publishing_bases.md)
 
 ## Resource Printing
 

docs/book/pages/app_composition_and_deployment/structure_branches.md

@@ -17,7 +17,7 @@ Before using these recommendations, carefully evaluate if they are right for you
   - Facilitate Rollbacks to an Environment by reverting commits
 {% endpanel %}
 
-# Branch Structure Based Composition
+# Branch Structure Based Layout
 
 The are several techniques for users to structure their Resource Config files.
 

docs/book/pages/app_composition_and_deployment/structure_directories.md

@@ -11,7 +11,7 @@ Before using these recommendations, carefully evaluate if they are right for you
   - Separate directories for separate Environment and Cluster [Config Variants](../app_customization/bases_and_variants.md)
 {% endpanel %}
 
-# Directory Structure Based Composition
+# Directory Structure Based Layout
 
 The are several techniques for users to structure their Resource Config files.
 

docs/book/pages/app_composition_and_deployment/structure_repositories.md

@@ -15,7 +15,7 @@ Before using these recommendations, carefully evaluate if they are right for you
   - Separate Issue, Project and PR tracking
 {% endpanel %}
 
-# Repository Structure Based Composition
+# Repository Structure Based Layout
 
 The are several techniques for users to structure their Resource Config files.