[odolbeau/phone-number-bundle] add more example configuration (symfony#1688)

Author: JohJohan

odolbeau/phone-number-bundle/3.0/config/packages/misd_phone_number.yaml

@@ -4,3 +4,10 @@
 #    dbal:
 #        types:
 #            phone_number: Misd\PhoneNumberBundle\Doctrine\DBAL\Types\PhoneNumberType
+
+#misd_phone_number:
+#    twig: false
+#    form: false
+#    serializer: false
+#    validator:
+#        default_region: GB