Move feature profiles section to modules as a sub-section

specification/0-feature_profiles.rst

@@ -25,7 +25,7 @@ Summary
  `VoIP`_                      Required   Required   Required   Optional   Optional
  `Content Repository`_        Required   Required   Required   Optional   Optional
  `History Visibility`_        Required   Required   Required   Required   Optional
- `End-to-End Encryption`_     Optional   Optional   Optional   Optional   Optional 
+ `End-to-End Encryption`_     Optional   Optional   Optional   Optional   Optional
 ============================ ========== ========== ========== ========== ==========
 
 *Please see each module for more details on what clients need to implement.*

specification/targets.yaml

@@ -2,11 +2,11 @@ targets:
   main:  # arbitrary name to identify this build target
     files:  # the sort order of files to cat
       - 0-intro.rst
-      - { 1: 0-feature_profiles.rst }
       - 1-client_server_api.rst
       - { 1: 0-events.rst }
       - { 1: 0-event_signing.rst }
       - 2-modules.rst
+      - { 1: 0-feature_profiles.rst }
       - { 1: "group:modules" }  # reference a group of files
       - 3-application_service_api.rst
       - 4-server_server_api.rst