Corrected "Adding Documentation"

Signed-off-by: growupboron <shankhoghosh123@gmail.com>

docs/1_Hardware_Support/Overview.md

@@ -98,16 +98,16 @@ AGL Reference Boards (QEMU, RCar Gen 3 & Raspberry Pi 4)
 * Setting up flags at `aglsetup` script :
 
     ```sh
-    $ source meta-agl/scripts/aglsetup.sh -f -m $MACHINE -b build-$MACHINE agl-telematics-demo
+    $ source meta-agl/scripts/aglsetup.sh -f -m $MACHINE -b build-$MACHINE agl-cluster-demo
 
     #To enable Developer Options
-    $ source meta-agl/scripts/aglsetup.sh -f -m $MACHINE -b build-$MACHINE agl-telematics-demo-demo agl-devel
+    $ source meta-agl/scripts/aglsetup.sh -f -m $MACHINE -b build-$MACHINE agl-cluster-demo agl-devel
     ```
 
 * Building target image :
 
     ```sh
-    $ time bitbake <....>
+    $ time bitbake agl-cluster-demo
     ```
 
 #### 3. Telematics
@@ -118,18 +118,19 @@ Headless demo platform for low-spec boards.
 
 Community supported Machines (BeagleBone)
 
+
 * Setting up flags at `aglsetup` script :
 
     ```sh
-    $ source meta-agl/scripts/aglsetup.sh -f -m $MACHINE -b build-$MACHINE agl-cluster-demo
+    $ source meta-agl/scripts/aglsetup.sh -f -m $MACHINE -b build-$MACHINE agl-telematics-demo
 
     #To enable Developer Options
-    $ source meta-agl/scripts/aglsetup.sh -f -m $MACHINE -b build-$MACHINE agl-cluster-demo agl-devel
+    $ source meta-agl/scripts/aglsetup.sh -f -m $MACHINE -b build-$MACHINE agl-telematics-demo agl-devel
     ```
 
 * Building target image :
 
     ```sh
-    $ time bitbake <....>
+    $ time bitbake agl-telematics-demo
     ```
 

docs/5_How_To_Contribute/1_How_to_add_documentation_to_AGL.md

@@ -0,0 +1,114 @@
+---
+edit_link: ''
+title: Adding Documentation
+origin_url: >
+---
+
+The [documentation gerrit repository](https://gerrit.automotivelinux.org/gerrit/admin/repos/AGL/documentation) contains AGL documentation website template and content, rendering is visible at [https://docs-agl.readthedocs.io/en/latest/](https://docs-agl.readthedocs.io/en/latest/). The documentation site is hosted on [readthedocs](https://readthedocs.org/projects/docs-agl/) and corresponding builds are mentioned [here](https://readthedocs.org/projects/docs-agl/builds/).
+
+## Download Repository
+
+Clone with commit-msg hook :
+
+```sh
+$ git clone "ssh://$USER@gerrit.automotivelinux.org:29418/AGL/documentation" && scp -p -P 29418 $USER@gerrit.automotivelinux.org:hooks/commit-msg "documentation/.git/hooks/"
+```
+
+## Building a local site
+
+1. Change into the directory
+
+    ```sh
+    $ cd documentation
+    ```
+
+2. Install MkDocs and rtd-dropdown theme 
+
+    ```sh
+    $ sudo pip install -r requirements.txt
+    ```
+
+3. Serve locally (defaultly rendered at [127.0.0.1:8000/](127.0.0.1:8000/)):    
+
+    ```sh
+    $ sudo mkdocs serve
+    ```
+
+Process to **add new or edit existing** markdown files to AGL documentation:
+
+## Directory Structure
+
+Find existing or add new markdowns in the following directory structure.
+
+```sh
+documentation
+├── docs
+│   ├── 0_Getting_Started
+│   │   ├── 1_Quickstart
+│   │   └── 2_Building_AGL_Image
+|   ├── .....
+|   |
+|   ├──<Chapter-Number>_<Chapter-Name>
+|   |   ├──<Subchapter-Number>_<Subchapter-Name>
+|   |   |   ├──<Index-Number>_<Markdown-Title>.md
+|   |   |   ├── .....
+```
+
+## Markdown Formatting 
+
+  1. Add following at the start of each markdown :
+
+    ```sh
+    ---
+    title: <enter-title>
+    ---
+    ```
+
+  2. Internal Linking :
+
+    ```sh
+    [<enter-title>](../<Chapter-Number>_<Chapter-Name>/<Subchapter-Number>_<Subchapter-Name>/<Index-Number>_<Markdown-Title>.md)
+    ```
+
+## Test Hyperlinks
+
+[LinkChecker](https://wummel.github.io/linkchecker/) is a tool that allows to check all the hyperlinks in the site. 
+
+For testing hyperlinks as soon as the local site is running, do:
+
+```sh
+linkchecker http://localhost:8000
+```
+
+The ```linkchecker``` output will display the broken link and there location
+in the site.
+
+
+## Submitting changes
+
+1. Install Git Review 
+
+    ```sh
+    #recent version of git-review  (>=1.28.0 is required)
+    sudo pip3 install git-review   
+    ```
+
+2. Write commit message
+
+    ```sh
+    # track all the new changes
+    git add .    
+
+    # Write the commit message
+    git commit --signoff 
+    ```
+
+3. Push changes for review to Gerrit
+
+    ```sh
+    # first time only
+    git review -s 
+
+    # then to push use
+    git review
+    ```