Four typos for Liberty version HA-Guide

I found Four typos for Liberty version HA-Guide

Typo1
  galara => galera
http://docs.openstack.org/draft/ha-guide/controller-ha-galera.html

Typo2
  riaDB => MariaDB
http://docs.openstack.org/draft/ha-guide/controller-ha-galera.html

Typo3
  paramaeter=>parameter
http://docs.openstack.org/draft/ha-guide/controller-ha-pacemaker.html

Typo4
  congfigure=>configure
http://docs.openstack.org/draft/ha-guide/controller-ha-rabbitmq.html

diff --git a/doc/ha-guide/source/controller-ha-galera.rst b/doc/ha-guide/source/controller-ha-galera.rst
index d6da9f8..8b5913b 100644
--- a/doc/ha-guide/source/controller-ha-galera.rst
+++ b/doc/ha-guide/source/controller-ha-galera.rst
@@ -67,7 +67,7 @@ Galera/MySQL in:

     .. note ::

- The galara package is now called galera-3 and is already a dependency
+ The galera package is now called galera-3 and is already a dependency
        of mariadb-galera-server. Therefore it should not be specified on the
        command line.

@@ -258,7 +258,7 @@ to recover from an error:
        | wsrep_flow_control_sent | 0 |
        | wsrep_flow_control_recv | 0 |
        | wsrep_cert_deps_distance | 1.029703 |
- |riaDB with Galera (Red Hat-based platforms) wsrep_apply_oooe | 0.024752 |
+ |MariaDB with Galera (Red Hat-based platforms) wsrep_apply_oooe | 0.024752 |
        | wsrep_apply_oool | 0.000000 |
        | wsrep_apply_window | 1.024752 |
        | wsrep_commit_oooe | 0.000000 |
diff --git a/doc/ha-guide/source/controller-ha-pacemaker.rst b/doc/ha-guide/source/controller-ha-pacemaker.rst
index 651bb87..4287f4e 100644
--- a/doc/ha-guide/source/controller-ha-pacemaker.rst
+++ b/doc/ha-guide/source/controller-ha-pacemaker.rst
@@ -385,7 +385,7 @@ Note the following:
   This logic is repeated until the number of online nodes
   in the cluster reaches 2.
   In order to allow the cluster to step down from 2 members to only 1,
- the ``auto_tie_breaker`` paramaeter needs to be set;
+ the ``auto_tie_breaker`` parameter needs to be set;
   this is not recommended for production environments.

 - ``last_man_standing_window`` specifies the time, in milliseconds,
diff --git a/doc/ha-guide/source/controller-ha-rabbitmq.rst b/doc/ha-guide/source/controller-ha-rabbitmq.rst
index cd0157c..04c2b64 100644
--- a/doc/ha-guide/source/controller-ha-rabbitmq.rst
+++ b/doc/ha-guide/source/controller-ha-rabbitmq.rst
@@ -96,7 +96,7 @@ the availability of service since it is resilient to failures.
 Production servers should run (at least) three RabbitMQ servers;
 for testing and demonstration purposes,
 it is possible to run only two servers.
-In this section, we congfigure two nodes,
+In this section, we configure two nodes,
 called `rabbit1` and `rabbit2`.
 To build a broker, we need to ensure
 that all nodes have the same Erlang cookie file.