docs(readme): highlight code example (alunny#25)

Author: n1ru4l

README.md

@@ -29,21 +29,23 @@ Allows you to edit xcodeproject files and write them back out.
 
 ## Example
 
-    // API is a bit wonky right now
-    var xcode = require('xcode'),
-        fs = require('fs'),
-        projectPath = 'myproject.xcodeproj/project.pbxproj',
-        myProj = xcode.project(projectPath);
+```js
+// API is a bit wonky right now
+var xcode = require('xcode'),
+    fs = require('fs'),
+    projectPath = 'myproject.xcodeproj/project.pbxproj',
+    myProj = xcode.project(projectPath);
 
-    // parsing is async, in a different process
-    myProj.parse(function (err) {
-        myProj.addHeaderFile('foo.h');
-        myProj.addSourceFile('foo.m');
-        myProj.addFramework('FooKit.framework');
-        
-        fs.writeFileSync(projectPath, myProj.writeSync());
-        console.log('new project written');
-    });
+// parsing is async, in a different process
+myProj.parse(function (err) {
+    myProj.addHeaderFile('foo.h');
+    myProj.addSourceFile('foo.m');
+    myProj.addFramework('FooKit.framework');
+   
+    fs.writeFileSync(projectPath, myProj.writeSync());
+    console.log('new project written');
+});
+```
 
 ## Working on the parser