Fixes region tag for kms_create_keyring. (GoogleCloudPlatform#812)

Author: WalterHub

kms/src/create_keyring.php

@@ -30,7 +30,7 @@
 }
 list($_, $projectId, $locationId, $keyRingId) = $argv;
 
-# [START kms_create_cryptokey]
+# [START kms_create_keyring]
 use Google\Cloud\Kms\V1\KeyManagementServiceClient;
 use Google\Cloud\Kms\V1\KeyRing;
 
@@ -54,4 +54,4 @@
 );
 
 printf('Created keyRing %s' . PHP_EOL, $keyRingId);
-# [END kms_create_cryptokey]
+# [END kms_create_keyring]