Update terrain_editor.adoc

Commented out broken link to world press.

src/docs/asciidoc/sdk/terrain_editor.adoc

@@ -11,7 +11,7 @@ ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 
 The terrain editor lets you create, modify, and paint terrain.
 
-image::wp-uploads/2011/07/terrain-blogpost-july.png[terrain-blogpost-july.png,width="416",height="375",align="center"]
+//image::wp-uploads/2011/07/terrain-blogpost-july.png[terrain-blogpost-july.png,width="416",height="375",align="center"]