Add Sulu Demo Example link to Cookbooks Documentation (#836)

* Add Sulu Demo Example link to Cookbooks Documentation

* Update cookbook/index.rst

---------

Co-authored-by: Prokyonn <[email protected]>

Author: alexander-schranz

cookbook/index.rst

@@ -1,11 +1,16 @@
 Cookbook
 ========
 
-Here are some awesome recepies for lunch. The Cookbook covers some advanced
+Here are some awesome recipes for lunch. The Cookbook covers some advanced
 topics which each covers a very special problem. Create your very own menu with
 our recipes.
 
-**Our recepies**
+.. note::
+
+    In addition to the following cookbooks, there are also a few examples in the Sulu Demo Repository under the `Example Label`_
+    showing other interesting cookbooks.
+
+**Our recipes**
 
 .. toctree::
     :maxdepth: 1
@@ -50,3 +55,5 @@ our recipes.
 It is possible to work through the recipes, although most of the people will
 pick the ones, which are most similar to their own tasks. We're open to
 `suggestions <http://sulu.io/en/contact>`_.
+
+_`Example Label`: Sulu Demo Examples <https://github.com/sulu/sulu-demo/pulls?q=is%3Aopen+is%3Apr+label%3AExample>

index.rst

@@ -1,9 +1,9 @@
 Welcome to the Sulu Documentation!
 ##################################
 
-`Sulu`_ makes Content Management awesome. 
+`Sulu`_ makes Content Management awesome.
 
-Here's the perfect place to get started and find everything you need to know to code with Sulu. 
+Here's the perfect place to get started and find everything you need to know to code with Sulu.
 We got :doc:`book/index`, :doc:`cookbook/index`, :doc:`reference/index`, :doc:`bundles/index` and :doc:`developer/index`.
 
 Be sure to visit our `website`_. There's a lot of information about Sulu and how we do things.