Prepare release 0.8.1

Refs: #5250
Change-Id: I99931c1300cd752554aea764e9688d027b5de29e
diff --git a/docs/index.rst b/docs/index.rst
index 97bf2e4..3af74fe 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1,26 +1,6 @@
 ndn-cxx: NDN C++ library with eXperimental eXtensions
 =====================================================
 
-**ndn-cxx** is a C++14 library implementing Named Data Networking (NDN) primitives
-that can be used to write various NDN applications. The library is currently being
-used by the following projects:
-
-* `NFD - NDN Forwarding Daemon <https://github.com/named-data/NFD>`_
-* `NLSR - Named-data Link-State Routing protocol <https://github.com/named-data/NLSR>`_
-* `ndn-tools - Essential NDN command-line tools <https://github.com/named-data/ndn-tools>`_
-* `repo-ng - Next generation of NDN repository <https://github.com/named-data/repo-ng>`_
-* `ChronoSync - Sync library for multiuser realtime applications <https://github.com/named-data/ChronoSync>`_
-* `PSync - Partial and full synchronization library <https://github.com/named-data/PSync>`_
-* `ndn-traffic-generator - Traffic generator for NDN <https://github.com/named-data/ndn-traffic-generator>`_
-* `NAC - Name-based Access Control <https://github.com/named-data/name-based-access-control>`_
-* `NDNS - Domain Name Service for NDN <https://github.com/named-data/ndns>`_
-
-Please submit any bugs or feature requests to the `ndn-cxx issue tracker
-<https://redmine.named-data.net/projects/ndn-cxx/issues>`_.
-
-ndn-cxx Documentation
----------------------
-
 .. toctree::
    :hidden:
    :maxdepth: 3
@@ -36,34 +16,60 @@
    :maxdepth: 1
 
    code-style
-   RELEASE_NOTES
+   release-notes
    releases
 
+**ndn-cxx** is a C++14 library implementing Named Data Networking (NDN) primitives
+that can be used to write various NDN applications. The library is currently being
+used by the following projects:
+
+* `NFD - NDN Forwarding Daemon <https://github.com/named-data/NFD>`_
+* `NLSR - Named-data Link-State Routing protocol <https://github.com/named-data/NLSR>`_
+* `ndn-tools - Essential NDN command-line tools <https://github.com/named-data/ndn-tools>`_
+* `ndn-svs - State Vector Sync library <https://github.com/named-data/ndn-svs>`_
+* `PSync - Partial and full Sync library <https://github.com/named-data/PSync>`_
+* `ChronoSync - Sync library for distributed real-time applications (deprecated) <https://github.com/named-data/ChronoSync>`_
+* `NAC - Name-based Access Control library <https://github.com/named-data/name-based-access-control>`_
+* `NDNCERT - NDN certificate management protocol <https://github.com/named-data/ndncert>`_
+* `repo-ng - NDN repository implementation in C++ (deprecated) <https://github.com/named-data/repo-ng>`_
+* `ndn-traffic-generator - Simple NDN traffic generator <https://github.com/named-data/ndn-traffic-generator>`_
+
+Documentation
+-------------
+
 - :doc:`INSTALL`
 - :doc:`examples`
 - :doc:`tutorials`
 
-   + `NDN Software Contributor's Guide <https://github.com/named-data/.github/blob/master/CONTRIBUTING.md>`_ (guide for newcomers to the NDN community of software generally)
    + :doc:`tutorials/utils-ndn-regex`
    + :doc:`tutorials/security-validator-config`
 
+- :doc:`manpages`
+- :doc:`release-notes`
+- :doc:`releases`
+
+For developers
+^^^^^^^^^^^^^^
+
+- `NDN Software Contributor's Guide <https://github.com/named-data/.github/blob/master/CONTRIBUTING.md>`__
+  (guide for newcomers to the NDN community of software)
+
 - :doc:`specs`
 
    + :doc:`specs/safe-bag`
    + :doc:`specs/signed-interest`
 
-- :doc:`manpages`
-
-Additional Documentation
-^^^^^^^^^^^^^^^^^^^^^^^^
-
-- `API documentation (doxygen) <doxygen/annotated.html>`_
+- `API documentation (doxygen) <doxygen/annotated.html>`__
 - :doc:`code-style`
-- :doc:`RELEASE_NOTES`
-- :doc:`releases`
+
+Issues
+------
+
+Please submit any bugs or feature requests to the
+`ndn-cxx issue tracker <https://redmine.named-data.net/projects/ndn-cxx/issues>`__.
 
 License
 -------
 
 ndn-cxx is an open source project licensed under the LGPL version 3. For more information about
-the license, refer to `COPYING.md <https://github.com/named-data/ndn-cxx/blob/master/COPYING.md>`_.
+the license, refer to `COPYING.md <https://github.com/named-data/ndn-cxx/blob/master/COPYING.md>`__.