Fixed missing code block declarations in README
diff --git a/README.rst b/README.rst
index c6ff3d2..27511bd 100644
--- a/README.rst
+++ b/README.rst
@@ -15,6 +15,8 @@
 
 Simplest horizon setup with managed cloud-archive repo on ubuntu 12.04
 
+.. code-block:: yaml
+
     linux:
       system:
         name: horizon
@@ -45,6 +47,8 @@
 
 Simple branded horizon
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -54,6 +58,8 @@
 
 Horizon package setup with SSL
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -79,6 +85,8 @@
 
 Multi-regional horizon setup
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -104,6 +112,8 @@
 
 Horizon setup with sensu plugin
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -129,6 +139,8 @@
 
 Sensu multi API
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -143,6 +155,8 @@
 
 Horizon setup with billometer plugin
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -161,6 +175,8 @@
 
 Horizon setup with contrail plugin
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -176,6 +192,8 @@
 
 Horizon setup with sentry log handler
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -190,6 +208,8 @@
 
 Simple Horizon setup from git repository
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -215,6 +235,8 @@
 
 Themed multisite setup
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -291,6 +313,8 @@
 
 API versions override
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true
@@ -307,6 +331,8 @@
 
 Control dashboard behaviour
 
+.. code-block:: yaml
+
     horizon:
       server:
         enabled: true