Update readme

README.md

@@ -17,7 +17,7 @@ that will resolve with a duplex stream for the port.
 ```php
 $serial = new SerialFactory();
 $serial->open("/dev/ttyUSB0", 115200)
-    ->then(...);
+    ->then(function (DuplexStreamInterface $stream) { ... });
 ```
 
 You may find that you need line buffering, in which case you should wrap the stream in a
@@ -28,36 +28,34 @@ event whenever a matching prompt is detected, and with `$bufferOutput` you will
 an `output` event with all the `line`s emitted since the last `prompt`.
 
 ```php
-$serial->open("/dev/ttyUSB0", 115200)
-    ->then(function (DuplexStreamInterface $stream) {
-        // Wrap our stream and use '#> ' as the prompt pattern.
-        $shell = new LineBufferedDuplexStream($stream, promptPattern: '/\#\> /', bufferOutput:true);
-        // Prepare the commands to execute, in order
-        $commands = [
-            'set first="value"',
-            'set second="something"',
-            'apply',
-        ];
-        // Execute the next command once we get a prompt
-        $shell->on("prompt", function () use ($shell, &$commands) {
-            $command = array_shift($commands);
-            if (!$command) {
-                // Closing the wrapper closes the stream
-                $shell->close();
-                return;
-            }
-            echo "# \e[1m".$command."\e[0m\n";
-            $shell->write($command."\n");
-        });
-        // Receives each complete line
-        $shell->on("line", function ($line) {
-            // ...
-        });
-        // Receives all the output lines from the last command.
-        $shell->on("output", function(array $lines) {
-            // ...
-        });
-        // write "config" to our fictive device to enable config mode
-        $shell->write("config\n");
-    });
+// Wrap our stream and use '#> ' as the prompt pattern.
+$shell = new LineBufferedDuplexStream($stream, promptPattern: '/\#\> /', bufferOutput:true);
+
+// Prepare the commands to execute, in order. These are the commands you would use
+// on an OpenWRT router to configure the WiFi password for the "main" WiFi interface.
+$commands = [
+    'uci set wireless.main.key="pennyisafreeloader"',
+    'uci commit wireless',
+    'wifi restart',
+];
+
+// Execute the next command once we get a prompt
+$shell->on("prompt", function () use ($shell, &$commands) {
+    $command = array_shift($commands);
+    if (!$command) {
+        // Closing the wrapper closes the stream
+        $shell->close();
+        return;
+    }
+    echo $command."\n";
+    $shell->write($command."\n");
+});
+
+// Receives all the output lines from the last command.
+$shell->on("output", function(array $lines) {
+    echo "  ".join("\n  ",$lines)."\n";
+});
+
+// write "echo" to the shell on our fictive device to get a fresh prompt
+$shell->write("echo\n");
 ```