updated example

Examples/SwiftSerialExample/Sources/main.swift

@@ -25,6 +25,7 @@ do {
     print("Serial port \(portName) opened successfully.")
     defer {
         serialPort.closePort()
+        print("Port Closed")
     }
 
     serialPort.setSettings(receiveRate: .baud9600,
@@ -74,8 +75,8 @@ do {
         }
     }
     
+    print("End of example");
 
-    print("We successfully received back \(numberOfMultiNewLineTest) lines")
 
 } catch PortError.failedToOpen {
     print("Serial port \(portName) failed to open. You might need root permissions.")

README.md

@@ -66,9 +66,13 @@ To get started quickly, you can take a look at my example project [here](Example
 git clone https://github.com/yeokm1/SwiftSerial.git
 cd SwiftSerial/Examples/SwiftSerialExample/
 swift build
-#You need root to access the serial port. Replace /dev/ttyUSB0 with the name of your serial port under test
+
+#For Linux: You need root to access the serial port. Replace /dev/ttyUSB0 with the name of your serial port under test
 sudo ./.build/debug/SwiftSerialExample /dev/ttyUSB0
 
+#For Mac: Root is not required
+./.build/debug/SwiftSerialExample /dev/tty.usbserial
+
 #If all goes well you should see a series of messages informing you that data transmitted has been received properly.
 ```