Fix APIML ATTLS documentation

[1000TurquoisePogs]

Current documentation has several problems that will break if tried as-is

• Non-default ports (10* instead of 7551-7555)
• Port ranges that cover more ports than quantity of servers (10 ports instead of 5)
• Jobnames that catch unrelated parts of Zowe (ZWE*)
• Jobnames that don't catch any part of Zowe by default (ZWEA instead of ZWE1)
• Double "server:" entry in the gateway YAML
• Example only covering gateway & discovery - should probably list all servers to prevent confusion.

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