Note that zsh requires -agentlib to be quoted

[DavidWhitlock]

A student notes the following

I am also working on project five and if anybody is trying to run the debugger on the client with zsh it treats the * in java -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=:5004 -jar target/airline-client.jar localhost 8080 doe “a deer, a female deer” as a wildcard but it you put quotes around it java “-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=:5004" -jar target/airline-client.jar localhost 8080 doe “a deer, a female deer” it will work.

I should update the README to reflect that.