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

bridges/InstagramBridge.php

@@ -19,18 +19,21 @@ class InstagramBridge extends BridgeAbstract {
 		'Username' => array(
 			'u' => array(
 				'name' => 'username',
+				'exampleValue' => 'aesoprockwins',
 				'required' => true
 			)
 		),
 		'Hashtag' => array(
 			'h' => array(
 				'name' => 'hashtag',
+				'exampleValue' => 'beautifulday',
 				'required' => true
 			)
 		),
 		'Location' => array(
 			'l' => array(
 				'name' => 'location',
+				'exampleValue' => 'london',
 				'required' => true
 			)
 		),