Update README.md

README.md

@@ -51,8 +51,10 @@ The roadmap is available on [this GitHub Project](https://github.com/NGRP/node-r
 ## Developers
 ### Getting Started
 
-A documentation is available on [this GitHub Wiki](https://github.com/NGRP/node-red-contrib-bot/wiki).
-
+<p align="center">
+  <a href="https://key.bot.viseo.io/"><img src="https://raw.githubusercontent.com/wiki/NGRP/node-red-viseo-bot/img/doc/get_a_key.png" alt="get a key" width="20%"/></a>    
+  <a href="https://github.com/NGRP/node-red-contrib-bot/wiki"><img src="https://raw.githubusercontent.com/wiki/NGRP/node-red-viseo-bot/img/doc/get_started.png" alt="get started" width="20%"/></a>
+</p>
 
 ### Getting Help
 
@@ -74,4 +76,4 @@ This project adheres to the Contributor Covenant 1.4. Before raising a pull-requ
 
 Icons are from [Freepik](http://www.freepik.com) or from [Flaticon](http://www.flaticon.com), licensed by [CC 3.0 BY](http://creativecommons.org/licenses/by/3.0/).
 
-Copyright 2016-2019 [VISEO](http://www.viseo.com/) under the Apache 2.0 license.
+Copyright 2016-2019 [VISEO](http://www.viseo.com/) under the Apache 2.0 license.