adding some documentation for the checked languages command line options

Developper-Guide.md

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+This page contains recommandations for developpers who had like to contribute to i-Code CNES. Feel free to ask further informations [issues](https://github.com/lequal/i-CodeCNES/issues).
+
+# Requirements
+## Tools
+To be able to make your own i-Code CNES Developpements, we recommend you to install
+* Latest release of [Eclipse RCP](http://www.eclipse.org/downloads/packages/release/2018-09/r/eclipse-ide-rcp-and-rap-developers)
+* Maven
+* Java JDK <8
+
+## Knowledge
+A few Lexer and Lava knowledges are required to be able to edit or create new checkers, however this part is hugely explained in [[Checkers implementation]]. 
+
+

Home.md

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+# i-Code CNES Wiki
+
+i-Code CNES is a static analysis tool for Fortran and Shell, it's verifying code compliancy with CNES standards (RNC). 
+
+## Documentation
+* [[User Manual]]
+* [[Installation Manual]]
+* [Developer Guide](/lequal/icode-custom-plugin-example/wiki) (redirect to [lequal/icode-custom-plugin-example](/lequal/icode-custom-plugin-example) wiki)

Installation-Manual.md

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+## Table of contents
++ [1. Introduction](#1-introduction)
++ [2. Installation guidelines](#2-installation-guidelines)
+  + [2.1. Download i-Code](#21-download-i-code)
+  + [2.2. Install i-Code CLI](#22-install-i-code-cli)
+  + [2.3. Install i-Code IDE](#23-intall-i-code-ide)
+  + [2.4. Install i-Code plugin for Eclipse](#24-install-i-code-plugin-for-eclipse)
+  + [2.5. Install i-Code plugin for SonarQube](#25-install-i-code-plugin-for-sonarqube)
++ [3. References](#3-references)
+
+## 1. Introduction
+
+This document explains how to install i-Code CNES. Documentation on how to use i-Code is in the user manual [ [R1] ].
+
+This tool provides four products:
++ A standalone version with GUI named **i-Code CNES IDE**
++ A command line version named **i-Code CLI** or **i-Code App**
++ An Eclipse plugin
++ A SonarQube plugin [ [R3] ]
+
+Other products are available for developers:
++ **i-Code Core**: a library containing core features for developing new i-Code plugins, see [ [R4] ] for more information
++ **i-Code Library**: a library allowing to analyze code in your own application
+
+## 2. Installation guidelines
+### 2.1. Download i-Code
+
+i-Code CNES products are available on the GitHub Release page of [i-CodeCNES](/lequal/i-CodeCNES) repository: [[https://github.com/lequal/i-CodeCNES/releases]].
+
+For each release, the following products are available:
++ i-Code plugin for Eclipse
+  + `fr.cnes.icode.repository-X.Y.Z-SNAPSHOT.zip`
++ i-Code CLI
+  + `icode-X.Y.Z.zip`
++ i-Code IDE
+  + `icode-ide.product-linux.gtk.x86.zip`
+  + `icode-ide.product-linux.gtk.x86_64.zip`
+  + `icode-ide.product-macosx.cocoa.x86_64.zip`
+  + `icode-ide.product-win32.win32.x86.zip`
+  + `icode-ide.product-win32.win32.x86_64.zip`
+
+### 2.2. Install i-Code CLI
+
+Download the latest i-Code CNES CLI version on [GitHub Releases page](https://github.com/lequal/i-CodeCNES/releases). Then put the archive in your chosen location.
+
+#### On linux
+```sh
+unzip icode-X.Y.Z.zip
+alias icode=$(pwd)/icode/icode
+``` 
+
+#### On Windows (PowerShell)
+Extract the archive, then: 
+```ps
+Set-Alias icode c:\path\to\icode\icode.bat
+```
+
+### 2.3. Install i-Code IDE
+### 2.4. Install i-Code plugin for Eclipse
+
+1. Download the eclipse plugin archive of the [last release](https://github.com/lequal/i-CodeCNES/releases). 
+
+1. Then, launch Eclipse and select the **Help > Install new Software**. 
+
+1. On the wizard, select **Add** and **Archive...** and select i-Code CNES archive.
+
+1. Restart Eclipse.
+
+### 2.5. Install i-Code plugin for SonarQube
+
+All information about i-Code plugin for SonarQube is available on the official [project's repository](/lequal/sonar-icode-cnes-plugin).
+
+There are two ways for installing the i-Code plugin:
+
++ Through the official SonarQube Marketplace
++ Manually by downloading the plugin on [its GitHub Release page](/lequal/sonar-icode-cnes-plugin/releases) and then following the installation guide in [ [R5] ]
+
+In any case, follow instructions of official SonarQube documentation for properly install this plugin [ [R5] ].
+
+## 3. References
+[R1]: #3-references
+[R2]: #3-references
+[R3]: #3-references
+[R4]: #3-references
+[R5]: #3-references
+
++ [ [R1] ] [i-Code User Manual](http://www.eclipse.org/documentation/)
++ [ [R2] ] [Eclipse Documentation](http://www.eclipse.org/documentation/)
++ [ [R3] ] [SonarQube plugin for i-Code](https://github.com/lequal/sonar-icode-cnes-plugin)
++ [ [R4] ] [i-Code Developer Guide](https://github.com/lequal/icode-custom-plugin-example/wiki)
++ [ [R5] ] [Install a SonarQube plugin](https://docs.sonarqube.org/latest/setup/install-plugin/)