[User Guide] Fix HA checks

Changes Additional checks to High Availability checks
as HA tests are now available by default and are placed in
the Ha tests section.
Removes the information on HA mode.
Lists HA tests available for 7.0.

Change-Id: I381b79242e29bb3485a185620bb79020e43709df
Closes-Bug: #1473409

pages/user-guide/health-checks/0500-addtional-checks-intro.rst

@@ -1,16 +0,0 @@
-Additional Checks
------------------
-If you have installed OpenStack to use a High Availability (HA) architecture
-or have installed related OpenStack projects like Sahara or Murano,
-additional tests will be shown. The following are the tests available
-in HA mode:
-
-* Check data replication over mysql
-* Check amount of tables in os databases is the same on each node
-* Check mysql environment state
-* Check galera environment state
-* RabbitMQ availability
-
-Sahara, Murano, and Heat tests are included in Platform Tests
-and are described in the sections that discuss those services.
-

pages/user-guide/health-checks/0500-ha-checks.rst

@@ -0,0 +1,11 @@
+High Availability checks
+------------------------
+
+The following tests are available to check High Availability (HA):
+
+* Check Pacemaker status
+* Check RabbitMQ availability
+* Check RabbitMQ replication
+* Check amount of tables in databases is the same on each node
+* Check Galera environment state
+* Check data replication over MySQL

pages/user-guide/post-install-healthchecks.rst

@@ -2,5 +2,5 @@
 .. include:: /pages/user-guide/health-checks/0120-benefits.rst
 .. include:: /pages/user-guide/health-checks/0200-run-tests.rst
 .. include:: /pages/user-guide/health-checks/0300-test-fails.rst
-.. include:: /pages/user-guide/health-checks/0500-addtional-checks-intro.rst
+.. include:: /pages/user-guide/health-checks/0500-ha-checks.rst
 .. include:: /pages/user-guide/health-checks/0600-platform-tests-intro.rst