* Update commands/files
There were some typo's in the README, these were adjusted and tested.
* Removed StateDirectory & LogsDirectory in .service
Were not required and giving errors:
May 16 12:28:07 debian systemd[1]: [/etc/systemd/system/cowrie.service:16] Unknown lvalue 'StateDirectory' in section 'Service'
May 16 12:28:07 debian systemd[1]: [/etc/systemd/system/cowrie.service:17] Unknown lvalue 'LogsDirectory' in section 'Service'