Fix example links in README file.

README.md

@@ -21,9 +21,9 @@ BlocklyDuino is a web tool. You can give it a try at
 [Web](http://blocklyduino.github.io/BlocklyDuino/blockly/apps/blocklyduino/) to see the working BlocklyDuino.
 
 You can link directly to examples
-* [demo 1](http://blocklyduino.github.io/BlocklyDuino/blockly/apps/blocklyduino/index.html?url=/public/blockly/apps/blocklyduino/examples/blink.xml) make default LED blink
-* [demo 2](http://blocklyduino.github.io/BlocklyDuino/blockly/apps/blocklyduino/index.html?url=/public/blockly/apps/blocklyduino/examples/servo_potentio.xml) control servo with potentio rotator
-* [demo 3](http://blocklyduino.github.io/BlocklyDuino/blockly/apps/blocklyduino/index.html?url=/public/blockly/apps/blocklyduino/examples/click_color.xml) click button to change LED colors
+* [demo 1](http://blocklyduino.github.io/BlocklyDuino/blockly/apps/blocklyduino/index.html?url=examples/blink.xml) make default LED blink
+* [demo 2](http://blocklyduino.github.io/BlocklyDuino/blockly/apps/blocklyduino/index.html?url=examples/servo_potentio.xml) control servo with potentio rotator
+* [demo 3](http://blocklyduino.github.io/BlocklyDuino/blockly/apps/blocklyduino/index.html?url=examples/click_color.xml) click button to change LED colors
 
 Or watch the [video demos](http://www.youtube.com/watch?v=_swiyXcUvNY)