Add class for table without borders

services/web/public/stylesheets/app/wiki.less

@@ -42,6 +42,11 @@
 		}
 		margin-bottom: @line-height-computed / 2;
 	}
+	.table-no-borders {
+		th, td {
+			border: 0px;
+		}
+	}
 	
 	.example {
 		max-width: 100%;