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>

1 files changed, 1 insertions, 92 deletions

diff --git a/docs/developer/design/yang2tosca.rst b/docs/developer/design/yang2tosca.rst
index 5aaf463..61d31b2 100644
--- a/docs/developer/design/yang2tosca.rst
+++ b/docs/developer/design/yang2tosca.rst
@@ -2,97 +2,6 @@
 .. http://creativecommons.org/licenses/by/4.0
 
 =================
-Parser YANG2TOSCA
+Parser yang2tosca
 =================
 
-Overview
-========
-
-Parser is an open source project and licensed under Apache 2. Parser will help
-to provide a tooling mechanism, by parsing Telecom operators’ VNF descriptors
-(YANG templates) into TOSCA templates and then further translate TOSCA
-templates into certain common templates, which could be used in IaaS orchestration
-projects like OpenStack Heat.
-
-Prerequisites
-=============
-
-Parser requires the following to be installed.
-
-1. PYANG
---------
-
-Please follow the below installation steps.
-
-Step 1: Clone pyang tool or download the zip file from the following link.
-
-.. code-block:: bash
-
-    git clone https://github.com/mbj4668/pyang.git
-
-OR
-
-.. code-block:: bash
-
-    wget https://github.com/mbj4668/pyang/archive/master.zip
-
-Step 2: Change directory to the downloaded directory and run the setup file.
-
-.. code-block:: bash
-
-    cd pyang
-    python setup.py
-
-2. python-lxml
---------------
-
-Please follow the below installation link. http://lxml.de/installation.html
-
-
-Installation
-============================
-
-Please follow the below installation steps to install parser.
-
-Step 1: Clone the parser project.
-
-.. code-block:: bash
-
-    git clone https://gerrit.opnfv.org/gerrit/parser
-
-Execution
-===========================
-
-Step 1: Change directory to where the scripts are present.
-
-.. code-block:: bash
-
-    cd parser/yang2tosca
-
-Step 2: Copy the YANG file which needs to be converted into TOSCA to
-        current (parser/yang2tosca) folder.
-
-Step 3: Run the python script "parser.py" with the YANG file as an input option.
-
-.. code-block:: bash
-
-    python parser.py -n "YANG filename"
-
-Example:
-
-.. code-block:: bash
-
-    python parser.py -n example.yaml
-
-Step 4: Verify the TOSCA YAMl which file has been created with the same name
-        as the YANG file with a “_tosca” suffix.
-
-.. code-block:: bash
-
-    cat "YANG filename_tosca.yaml"
-
-Example:
-
-.. code-block:: bash
-
-    cat example_tosca.yaml