Repropose unfinished Stein specs to Train

The explicit domain IDs and capabilities/access rules specs were not
finished in Stein but are already in progress and on target to finish
early in the Train cycle.

Change-Id: I052079fcdb11f8e11c854b11d8013fd460f421ec

doc/source/index.rst

@@ -14,15 +14,15 @@ Project Documentation:
 keystone
 --------
 
-Stein approved specs:
+Train approved specs:
 
-`Stein Roadmap <https://trello.com/b/rj0ECz2c/keystone-stein-roadmap>`_
+`Train Roadmap <https://trello.com/b/ClKW9C8x/keystone-train-roadmap>`_
 
 .. toctree::
    :glob:
    :maxdepth: 1
 
-   specs/keystone/stein/*
+   specs/keystone/train/*
 
 Backlog:
 
@@ -107,6 +107,16 @@ Implemented Identity Program Specifications
 keystone
 --------
 
+Stein approved specs:
+
+`Stein Roadmap <https://trello.com/b/rj0ECz2c/keystone-stein-roadmap>`_
+
+.. toctree::
+   :glob:
+   :maxdepth: 1
+
+   specs/keystone/stein/*
+
 Rocky approved specs:
 
 `Rocky Roadmap <https://trello.com/b/wmyzbFq5/keystone-rocky-roadmap>`_