Delete redundant rst files and update README

- Update outdated links in README
- Remove skeleton.rst, this file is unnecessary.
- Add Stein Specifications dir.
- Move placeholder.rst to stein dir, because there
is a blueprint accepted in rocky dir.

Change-Id: I5fd436db02517404d3aca3114498206f164bca44

README.rst

@@ -2,8 +2,8 @@
 Team and repository tags
 ========================
 
-.. image:: http://governance.openstack.org/badges/neutron-specs.svg
-    :target: http://governance.openstack.org/reference/tags/index.html
+.. image:: https://governance.openstack.org/tc/badges/neutron-specs.svg
+    :target: https://governance.openstack.org/tc/reference/tags/index.html
 
 .. Change things from this point on
 
@@ -19,11 +19,7 @@ The layout of this repository is::
 
   specs/<release>/
 
-You can find an example spec in `doc/source/specs/template.rst`. A
-skeleton that contains all the sections required for a spec
-file is located in `doc/source/specs/skeleton.rst` and can
-be copied, then filled in with the details of a new blueprint for
-convenience.
+You can find an example spec in `specs/template.rst`.
 
 Specifications are proposed for a given release by adding them to the
 `specs/<release>` directory and posting it for review. The implementation
@@ -38,7 +34,7 @@ Prior to the Juno development cycle, this repository was not used for spec
 reviews. Reviews prior to Juno were completed entirely through Launchpad
 blueprints::
 
-  http://blueprints.launchpad.net/neutron
+  https://blueprints.launchpad.net/neutron
 
 Please note, Launchpad blueprints are still used for tracking the
 current status of blueprints. For more information, see::
@@ -47,7 +43,7 @@ current status of blueprints. For more information, see::
 
 For more information about working with gerrit, see::
 
-  http://docs.openstack.org/infra/manual/developers.html#development-workflow
+  https://docs.openstack.org/infra/manual/developers.html#development-workflow
 
 To validate that the specification is syntactically correct (i.e. get more
 confidence in the Jenkins result), please execute the following command::

doc/source/index.rst

@@ -10,6 +10,7 @@ Specifications and RFEs
 .. toctree::
    :maxdepth: 2
 
+   specs/stein/index
    specs/rocky/index
    specs/queens/index
    specs/pike/index

specs/skeleton.rst

@@ -1,23 +0,0 @@
-..
- This work is licensed under a Creative Commons Attribution 3.0 Unported
- License.
-
- http://creativecommons.org/licenses/by/3.0/legalcode
-
-==========================================
-Title of your RFE
-==========================================
-
-
-Problem Description
-===================
-
-
-Proposed Change
-===============
-
-
-References
-==========
-
-

specs/stein/index.rst

@@ -0,0 +1,9 @@
+=====
+Stein
+=====
+
+.. toctree::
+   :glob:
+   :maxdepth: 1
+
+   *