[7.1] Typos in Management CLI Guide

This was reported on the Customer Portal by Mathias Trapp. https://access.redhat.com/discussions/2946131

On the website https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.0/html/management_cli_guide/creating_executing_requests

instead of
or by escaping it using a forward slash ().

it should read
or by escaping it using a back slash ().

Instead of
Double quotation marks (") are not allowed

it should read
Single quotation marks (') are not allowed