Improve documentation readability

The role documentation titles were too long, and being truncated
in the site sidebar. This change shortens the title names so that
the its easier to navigate the documentation.

An update has been made to the role-addition playbook so that the
new role titles are generated with the shorter length.

Change-Id: Icee3c318ac0049eda586c2696d732415575eaa40
Signed-off-by: Kevin Carter <kecarter@redhat.com>

doc/source/roles/role-aide.rst

@@ -1,6 +1,6 @@
-===========================
-TripleO-Ansible Role - aide
-===========================
+===========
+Role - aide
+===========
 
 This role provides for the following services:
 

doc/source/roles/role-test_deps.rst

@@ -1,6 +1,6 @@
-================================
-TripleO-Ansible Role - test_deps
-================================
+================
+Role - test_deps
+================
 
 This role provides for the following services:
 

doc/source/roles/role-test_json_error_callback.rst

@@ -1,6 +1,6 @@
-===============================================
-TripleO-Ansible Role - test_json_error_callback
-===============================================
+===============================
+Role - test_json_error_callback
+===============================
 
 This role provides for the following services:
 

doc/source/roles/role-test_package_action.rst

@@ -1,6 +1,6 @@
-==========================================
-TripleO-Ansible Role - test_package_action
-==========================================
+==========================
+Role - test_package_action
+==========================
 
 This role provides for the following services:
 

doc/source/roles/role-tripleo-bootstrap.rst

@@ -1,6 +1,6 @@
-========================================
-TripleO-Ansible Role - tripleo-bootstrap
-========================================
+========================
+Role - tripleo-bootstrap
+========================
 
 This role provides for the following services:
 

doc/source/roles/role-tripleo-create-admin.rst

@@ -1,6 +1,6 @@
-===========================================
-TripleO-Ansible Role - tripleo-create-admin
-===========================================
+===========================
+Role - tripleo-create-admin
+===========================
 
 This role provides for the following services:
 

doc/source/roles/role-tripleo-module-load.rst

@@ -1,6 +1,6 @@
-==========================================
-TripleO-Ansible Role - tripleo-module-load
-==========================================
+==========================
+Role - tripleo-module-load
+==========================
 
 This role provides for the following services:
 

doc/source/roles/role-tripleo-ssh-known-hosts.rst

@@ -1,6 +1,6 @@
-==============================================
-TripleO-Ansible Role - tripleo-ssh-known-hosts
-==============================================
+==============================
+Role - tripleo-ssh-known-hosts
+==============================
 
 This role provides for the following services:
 

doc/source/roles/role-tuned.rst

@@ -1,6 +1,6 @@
-============================
-TripleO-Ansible Role - tuned
-============================
+============
+Role - tuned
+============
 
 This role provides for the following services:
 

role-addition.yml

@@ -98,7 +98,7 @@
     - name: Create role documentation
       copy:
         content: |
-          {% set opening = 'TripleO-Ansible Role - ' ~ role_name %}
+          {% set opening = 'Role - ' ~ role_name %}
           {{ '=' * (opening | length) }}
           {{ opening }}
           {{ '=' * (opening | length) }}