Corretions and refinements to the String examples

build/linux/work/examples/01.Basics/Blink/Blink.ino

@@ -0,0 +1,19 @@
+/*
+  Blink
+  Turns on an LED on for one second, then off for one second, repeatedly.
+ 
+  This example code is in the public domain.
+ */
+
+void setup() {                
+  // initialize the digital pin as an output.
+  // Pin 13 has an LED connected on most Arduino boards:
+  pinMode(13, OUTPUT);     
+}
+
+void loop() {
+  digitalWrite(13, HIGH);   // set the LED on
+  delay(1000);              // wait for a second
+  digitalWrite(13, LOW);    // set the LED off
+  delay(1000);              // wait for a second
+}