Danube Release Docs Fixup patch 1

Done in this patch
1. Fixes in overview.rst
2. Moves governance folder under docs
3. Adds arno release use case doc from
https://wiki.opnfv.org/display/parser/Parser+Use+Cases to the
requirement folder
4. Moves two old tosca2heat documents into developer/design/examples
5. Adds new empty tosca2heat and verigraph design document under
developer/design.
6. Remove old contents in yang2tosca and policy2tosca design docs since
they are all related to installation/execution, not design.
7. Fixes in installation.instruction.rst and usage,guide.rst

To do in the following patches
1. Design doc writeup: Xiaodong(tosca2heat),
Shiva(yang2tosca/policy2tosca), Serena(verigraph)
2. Release doc writeup: Xiaodong and Howard
(postinstall.rst,scenario.description.rst), Serena(verigraph part of
release-notes.rst), release-notes.rst

Change-Id: If4f51067dd33acd2332e503ee31d6941b4df4c89
Signed-off-by: zhipengh <huangzhipeng@huawei.com>

2 files changed, 66 insertions, 81 deletions

diff --git a/docs/release/installation/installation.instruction.rst b/docs/release/installation/installation.instruction.rst
index 3a1417a..63a8b09 100644
--- a/docs/release/installation/installation.instruction.rst
+++ b/docs/release/installation/installation.instruction.rst
@@ -2,40 +2,66 @@
 .. http://creativecommons.org/licenses/by/4.0
 
 
-Parser general configuration
-=====================
-Parser can be configured with any installer in current OPNFV.
+Parser tosca2heat Installation
+============================
+
+Please follow the below installation steps to install tosca2heat submodule in parser.
+
+Step 1: Clone the parser project.
+
+.. code-block:: bash
+
+    git clone https://gerrit.opnfv.org/gerrit/parser
+
+Step 2: Install the heat-translator sub project.
 
-Pre-configuration activities
------------------------------
-For parser, there is not specific pre-configuration activities.
+.. code-block:: bash
+
+    # uninstall pre-installed tosca-parser
+    pip uninstall -y heat-translator
+
+    # change directory to heat-translator
+    cd parser/tosca2heat/heat-translator
+
+    # install requirements
+    pip install -r requirements.txt
 
-Hardware configuration
------------------------
-For parser, there is not hardware configuration needed for this specific installer.
+    # install heat-translator
+    python setup.py install
+
+Step 3: Install the tosca-parser sub project.
+
+.. code-block:: bash
 
-Jumphost configuration
------------------------
-For parser, there is not intial Jumphost configuration (network and software)needed in order
-to deploy any installer.
+    # uninstall pre-installed tosca-parser
+    pip uninstall -y tosca-parser
 
+    # change directory to tosca-parser
+    cd parser/tosca2heat/tosca-parser
 
-Parser tosca2heat configuration
-=====================
-For tosca2heat components(tosca-parser and heat-translator) in parser,there are not specific
-configuration of each component in installer.
+    # install requirements
+    pip install -r requirements.txt
 
+    # install tosca-parser
+    python setup.py install
 
-Parser yang2tosca configuration
-=====================
+
+  **Notes** It must uninstall pre-installed tosca-parser and heat-translator before install the two
+  components, and install heat-translator before installing tosca-parser, which is sure to use the
+  OPNFV version of tosca-parser and heat-translator other than openstack's components.
+
+
+Parser yang2tosca Installation
+==============================
 Parser yang2tosca requires the following to be installed.
 
-1. PYANG
---------
+Step 1: Clone the parser project.
 
-Please follow the below installation steps.
+.. code-block:: bash
 
-Step 1: Clone pyang tool or download the zip file from the following link.
+   git clone https://gerrit.opnfv.org/gerrit/parser
+
+Step 2: Clone pyang tool or download the zip file from the following link.
 
 .. code-block:: bash
 
@@ -47,30 +73,35 @@ OR
 
     wget https://github.com/mbj4668/pyang/archive/master.zip
 
-Step 2: Change directory to the downloaded directory and run the setup file.
+Step 3: Change directory to the downloaded directory and run the setup file.
 
 .. code-block:: bash
 
     cd pyang
     python setup.py
 
-2. python-lxml
+Step 4: install python-lxml
 --------------
 
 Please follow the below installation link. http://lxml.de/installation.html
 
 
-Parser policy2tosca configuration
-============================
-Parser - POLICY2TOSCA requires the following to be installed.
+Parser policy2tosca installation
+================================
+
+Please follow the below installation steps to install parser - POLICY2TOSCA.
 
-1. cliff
---------
+Step 1: Clone the parser project.
+
+.. code-block:: bash
+
+   git clone https://gerrit.opnfv.org/gerrit/parser
+
+Step 2: Install the policy2tosca module.
+
+.. code-block:: bash
 
-Install cliff with the following links.
-::
-- `install <http://docs.openstack.org/developer/cliff/install.html>`
-or
-- `demoapp <http://docs.openstack.org/developer/cliff/demoapp.html>
+   cd parser/policy2tosca
+   python setup.py install
 
 
diff --git a/docs/release/userguide/feature.userguide.rst b/docs/release/userguide/feature.userguide.rst
index c42330c..e6e8974 100644
--- a/docs/release/userguide/feature.userguide.rst
+++ b/docs/release/userguide/feature.userguide.rst
@@ -2,53 +2,7 @@
 .. http://creativecommons.org/licenses/by/4.0
 .. (c) <optionally add copywriters name>
 
-Parser tosca2heat Installation
-============================
-
-Please follow the below installation steps to install tosca2heat submodule in parser.
-
-Step 1: Clone the parser project.
-
-.. code-block:: bash
-
-    git clone https://gerrit.opnfv.org/gerrit/parser
-
-Step 2: Install the heat-translator sub project.
-
-.. code-block:: bash
-
-    # uninstall pre-installed tosca-parser
-    pip uninstall -y heat-translator
-
-    # change directory to heat-translator
-    cd parser/tosca2heat/heat-translator
-
-    # install requirements
-    pip install -r requirements.txt
-
-    # install heat-translator
-    python setup.py install
-
-Step 3: Install the tosca-parser sub project.
-
-.. code-block:: bash
-
-    # uninstall pre-installed tosca-parser
-    pip uninstall -y tosca-parser
-
-    # change directory to tosca-parser
-    cd parser/tosca2heat/tosca-parser
-
-    # install requirements
-    pip install -r requirements.txt
-
-    # install tosca-parser
-    python setup.py install
-
 
-  **Notes** It must uninstall pre-installed tosca-parser and heat-translator before install the two
-  components, and install heat-translator before installing tosca-parser, which is sure to use the
-  OPNFV version of tosca-parser and heat-translator other than openstack's components.
 
 Parser tosca2heat Execution
 ===========================