[Multiple] Fix all exampleValues and required variables (#2296)

bridges/FourchanBridge.php

@@ -10,11 +10,13 @@ class FourchanBridge extends BridgeAbstract {
 	const PARAMETERS = array( array(
 		'c' => array(
 			'name' => 'Thread category',
-			'required' => true
+			'required' => true,
+			'exampleValue' => 'po',
 		),
 		't' => array(
 			'name' => 'Thread number',
 			'type' => 'number',
+			'exampleValue' => '597271',
 			'required' => true
 		)
 	));