Fixed include issues to the site.

catan-doc/modules/architecture/pages/architecture.adoc

@@ -81,19 +81,19 @@ include::example$ad-initialization.plantuml[]
 .Arrêt du système
 [plantuml]
 ----
-include::system-stop.plantuml[]
+include::system-stop.adoc[]
 ----
 
 .Le joueur 1 se déconnecte
 [plantuml]
 ----
-include::a-player-disconnets.plantuml[]
+include::a-player-disconnets.adoc[]
 ----
 
 .La partie est finie
 [plantuml]
 ----
-include::game-ended.plantuml[]
+include::game-ended.adoc[]
 ----
 
 == Vue du développement