Added annotations example to Linking to Pages examples

[carlos-granados]

In the routing examples for the Linking to Pages section there were no annotations examples (which is what most people use). I have added these examples

[javiereguiluz]

At the beginning of the annotations snippets we should put the use imports needed to make the code work:

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;

// ...

[carlos-granados]

Added the missing use statements

[OskarStark]

👍

@xabbuh can you please restart this travis build

[xabbuh]

we will also need the namespace declaration

[xabbuh]

@carlos-granados Thank you for your good job. I just left you some last minor comment and restarted the Travis build (it's green now :)). We also have at least one other routing config example on that page (when talking about hinclude.js). Would you like to update that as well?

[carlos-granados]

Ok, will look at it tomorrow

[carlos-granados]

@xabbuh I added the missing namespace statements. In the case of about hinclude.js examples, they are not routing examples, they are config examples, so there is no annotations code that can be added

[xabbuh]

You are right. I have must have confused it. 👍

[weaverryan]

Thanks again Carlos! I tweaked the code-blocks at sha: 43e440b. I don't remember if this follows our coding standards or not, but I wanted to focus on the route using as little code as possible.