enr: minor changes in jack start script

Signed-off-by: Samuel Casa <samuelcasa9@gmail.com>
enr: make file modified
enr: readme modified

Signed-off-by: Samuel Casa <samuelcasa9@gmail.com>
enr: jackd startscript modified

Signed-off-by: Samuel Casa <samuelcasa9@gmail.com>
enr: jack client modified, minor

Signed-off-by: Samuel Casa <samuelcasa9@gmail.com>