[doc] Add documentation contributor.

Signed-off-by: Stéphane Galland <galland@arakhne.org>

README.adoc

@@ -214,6 +214,7 @@ If one point is failing, please follows the steps:
 == 6. Authors and Contributors
 
 * image:https://avatars.githubusercontent.com/m-ezzat[width="50px",link=https://github.com/m-ezzat] Mohamed Ezzat, code cleaning and optimization.
+* image:https://avatars.githubusercontent.com/jgfoster[width="50px",link=https://github.com/jgfoster] James Foster, documentation contributor.
 * image:https://avatars.githubusercontent.com/gallandarakhneorg[width="50px",link=https://github.com/gallandarakhneorg] link:http://www.multiagent.fr/People:Galland_stephane[Stéphane GALLAND], founder, original and active author.
 * image:https://avatars.githubusercontent.com/ngaud[width="50px",link=https://github.com/ngaud] link:http://www.multiagent.fr/People:Gaud_nicolas[Nicolas GAUD], founder, original and active author.
 * image:https://avatars.githubusercontent.com/jjst[width="50px",link=https://github.com/jjst] Jeremie JOST, documentation contributor.

pom.xml

@@ -149,6 +149,14 @@
 				<role>Code cleaning and optimization</role>
 			</roles>
 		</contributor>
+		<contributor>
+			<name>James Foster</name>
+			<email>github@jgfoster.net</email>
+			<url>https://github.com/jgfoster</url>
+			<roles>
+				<role>Documentation Contributor</role>
+			</roles>
+		</contributor>
 		<contributor>
 			<name>J&amp;eacute;r&amp;eacute;mie Jost</name>
 			<email>jeremiejost@gmail.com</email>