Cleans up the NTP's readme file

Change-Id: I938ef172bd2f17ab6f4781a7320ee442eb6cbbe0
diff --git a/README.rst b/README.rst
index e5a96e8..6eeab8a 100644
--- a/README.rst
+++ b/README.rst
@@ -1,175 +1,168 @@
-===
-NTP
-===
+=====
+Usage
+=====
 
-Network time synchronisation services.
+The Network Time Protocol (NTP) formula is used to properly synchronize
+services across the nodes. This file provides the sample configurations for
+different use cases.
 
-Sample pillars
-==============
+* [Deprecated] NTP client configuration, should not be used if the ``stratum``
+  parameter exists:
 
-NTP client (old version), not used when stratum parameter exists
+  .. code-block:: yaml
 
-.. code-block:: yaml
-
-    ntp:
-      client:
-        enabled: true
-        strata:
-        - ntp.cesnet.cz
-        - ntp.nic.cz
-
-NTP client (extended definitions with auth)
-
-.. code-block:: yaml
-
-    ntp:
-      client:
-        enabled: true
-        stratum:
-          primary:
-            server: ntp.cesnet.cz
-            key_id: 1
-          secondary:
-            server: ntp.nic.cz
-            key_id: 2
-
-NTP with MD5 auth
-Requires extended definitions
-
-.. code-block:: yaml
-
-    ntp:
-      client:
-        enabled: true
-        auth:
+      ntp:
+        client:
           enabled: true
-          secrets:
-            1:
-              secret_type: 'M'
-              secret: 'Runrabbitrundigthath'
-              trustedkey: true
-            2:
-              secret_type: 'M'
-              secret: 'Howiwishyouwereherew'
-              trustedkey: true
-        stratum:
-          primary:
-            server: ntp.cesnet.cz
-            key_id: 1
-          secondary:
-            server: ntp.nic.cz
-            key_id: 2
+          strata:
+          - ntp.cesnet.cz
+          - ntp.nic.cz
 
-.. code-block:: yaml
+* The NTP client extended definition with auth:
 
-    ntp:
-      client:
-        enabled: false
-      server:
-        enabled: true
-        auth:
+  .. code-block:: yaml
+
+      ntp:
+        client:
           enabled: true
-          secrets:
+          stratum:
+            primary:
+              server: ntp.cesnet.cz
+              key_id: 1
+            secondary:
+              server: ntp.nic.cz
+              key_id: 2
+
+* The NTP client with MD5 auth configuration:
+
+  .. code-block:: yaml
+
+      ntp:
+        client:
+          enabled: true
+          auth:
+            enabled: true
+            secrets:
+              1:
+                secret_type: 'M'
+                secret: 'Runrabbitrundigthath'
+                trustedkey: true
+              2:
+                secret_type: 'M'
+                secret: 'Howiwishyouwereherew'
+                trustedkey: true
+          stratum:
+            primary:
+              server: ntp.cesnet.cz
+              key_id: 1
+            secondary:
+              server: ntp.nic.cz
+              key_id: 2
+
+* The NTP server with MD5 auth configuration:
+
+  .. code-block:: yaml
+
+      ntp:
+        client:
+          enabled: false
+        server:
+          enabled: true
+          auth:
+            enabled: true
+            secrets:
+              1:
+                secret_type: 'M'
+                secret: 'Runrabbitrundigthath'
+                trustedkey: true
+              2:
+                secret_type: 'M'
+                secret: 'Howiwishyouwereherew'
+                trustedkey: true
+          stratum:
+            primary:
+              server: ntp.cesnet.cz
+              key_id: 1
+            secondary:
+              server: ntp.nic.cz
+              key_id: 2
+
+* A cleaning up of the NTP configurations left by DHCP:
+
+  .. code-block:: yaml
+
+      ntp:
+        client:
+          enabled: true
+          remove_dhcp_conf: true # default false
+
+* The NTP server simple peering definition:
+
+  .. code-block:: yaml
+
+      ntp:
+        server:
+          peers:
+          - 192.168.0.241
+          - 192.168.0.242
+
+* The NTP server extended peering definition:
+
+  .. code-block:: yaml
+
+     ntp:
+        server:
+          peers:
             1:
-              secret_type: 'M'
-              secret: 'Runrabbitrundigthath'
-              trustedkey: true
+              host: 192.168.31.1
             2:
-              secret_type: 'M'
-              secret: 'Howiwishyouwereherew'
-              trustedkey: true
-        stratum:
-          primary:
-            server: ntp.cesnet.cz
-            key_id: 1
-          secondary:
-            server: ntp.nic.cz
-            key_id: 2
+              host: 192.168.31.2
+            3:
+              host: 192.168.31.3
 
-Cleanup ntp configurations left by DHCP:
+* The NTP server definition enabling the ``listen`` and ``ignore`` actions on
+  specific addresses:
 
-.. code-block:: yaml
+  .. code-block:: yaml
 
-    ntp:
-      client:
-        enabled: true
-        remove_dhcp_conf: true # default false
+      ntp:
+        server:
+            1:
+              value: wildcard
+              action: ignore
+            2:
+              value: ::1
+              action: listen
+            3:
+              value: 192.168.31.1
+              action: listen
 
-Peering (simple):
-
-.. code-block:: yaml
-
-    ntp:
-      server:
-        peers:
-        - 192.168.0.241
-        - 192.168.0.242
-
-Peering (extended definitions):
-
-.. code-block:: yaml
-
-    ntp:
-      server:
-        peers:
-          1:
-            host: 192.168.31.1
-          2:
-            host: 192.168.31.2
-          3:
-            host: 192.168.31.3
-
-Enable listen/ignote on specific addresses
-
-.. code-block:: yaml
-
-    ntp:
-      server:
-          1:
-            value: wildcard
-            action: ignore
-          2:
-            value: ::1
-            action: listen
-          3:
-            value: 192.168.31.1
-            action: listen
-
-
-Read more
-=========
+**Read more**
 
 * https://collectd.org/wiki/index.php/Plugin:NTPd
 
-Documentation and Bugs
-======================
+**Documentation and bugs**
 
-To learn how to install and update salt-formulas, consult the documentation
-available online at:
+* http://salt-formulas.readthedocs.io/
+   Learn how to install and update salt-formulas
 
-    http://salt-formulas.readthedocs.io/
+* https://github.com/salt-formulas/salt-formula-ntp/issues
+   In the unfortunate event that bugs are discovered, report the issue to the
+   appropriate issue tracker. Use the Github issue tracker for a specific salt
+   formula
 
-In the unfortunate event that bugs are discovered, they should be reported to
-the appropriate issue tracker. Use Github issue tracker for specific salt
-formula:
+* https://launchpad.net/salt-formulas
+   For feature requests, bug reports, or blueprints affecting the entire
+   ecosystem, use the Launchpad salt-formulas project
 
-    https://github.com/salt-formulas/salt-formula-ntp/issues
+* https://launchpad.net/~salt-formulas-users
+   Join the salt-formulas-users team and subscribe to mailing list if required
 
-For feature requests, bug reports or blueprints affecting entire ecosystem,
-use Launchpad salt-formulas project:
+* https://github.com/salt-formulas/salt-formula-ntp
+   Develop the salt-formulas projects in the master branch and then submit pull
+   requests against a specific formula
 
-    https://launchpad.net/salt-formulas
+* #salt-formulas @ irc.freenode.net
+   Use this IRC channel in case of any questions or feedback which is always
+   welcome
 
-You can also join salt-formulas-users team and subscribe to mailing list:
-
-    https://launchpad.net/~salt-formulas-users
-
-Developers wishing to work on the salt-formulas projects should always base
-their work on master branch and submit pull request against specific formula.
-
-    https://github.com/salt-formulas/salt-formula-ntp
-
-Any questions or feedback is always welcome so feel free to join our IRC
-channel:
-
-    #salt-formulas @ irc.freenode.net