Doc: Fix top-level index.rst files.

Prior to this patch, in the PDF documentation, the abstract was chapter
1, the table of contents was chapter 2, and the index was chapter 3.
All the content of the book was in subheadings under chapter 2, which is
not really what we're looking for.

Now, the abstract is no longer its own chapter - it's just some text on
its own page following the table of contents - and the actual book
follows in its own chapters.

Author: clumens

doc/sphinx/Clusters_from_Scratch/index.rst

@@ -4,8 +4,6 @@ Clusters from Scratch
 *Step-by-Step Instructions for Building Your First High-Availability Cluster*
 
 
-Abstract
---------
 This document provides a step-by-step guide to building a simple high-availability
 cluster using Pacemaker.
 
@@ -22,9 +20,6 @@ included. However, the guide is primarily composed of commands, the reasons for
 executing them, and their expected outputs.
 
 
-Table of Contents
------------------
-
 .. toctree::
    :maxdepth: 3
    :numbered:
@@ -41,9 +36,5 @@ Table of Contents
    ap-configuration
    ap-corosync-conf
    ap-reading
-
-Index
------
-
-* :ref:`genindex`
-* :ref:`search`
+   :ref:`genindex`
+   :ref:`search`

doc/sphinx/Pacemaker_Administration/index.rst

@@ -4,14 +4,8 @@ Pacemaker Administration
 *Managing Pacemaker Clusters*
 
 
-Abstract
---------
-This document has instructions and tips for system administrators who
-manage high-availability clusters using Pacemaker.
-
-
-Table of Contents
------------------
+This document has instructions and tips for system administrators who manage
+high-availability clusters using Pacemaker.
 
 .. toctree::
    :maxdepth: 3
@@ -30,10 +24,5 @@ Table of Contents
    alerts
    agents
    pcs-crmsh
-
-
-Index
------
-
-* :ref:`genindex`
-* :ref:`search`
+   :ref:`genindex`
+   :ref:`search`

doc/sphinx/Pacemaker_Development/index.rst

@@ -4,16 +4,11 @@ Pacemaker Development
 *Working with the Pacemaker Code Base*
 
 
-Abstract
---------
 This document has guidelines and tips for developers interested in editing
 Pacemaker source code and submitting changes for inclusion in the project.
 Start with the FAQ; the rest is optional detail.
 
 
-Table of Contents
------------------
-
 .. toctree::
    :maxdepth: 3
    :numbered:
@@ -27,9 +22,5 @@ Table of Contents
    helpers
    evolution
    glossary
-
-Index
------
-
-* :ref:`genindex`
-* :ref:`search`
+   :ref:`genindex`
+   :ref:`search`

doc/sphinx/Pacemaker_Explained/index.rst

@@ -4,15 +4,10 @@ Pacemaker Explained
 *Configuring Pacemaker Clusters*
 
 
-Abstract
---------
 This document definitively explains Pacemaker's features and capabilities,
 particularly the XML syntax used in Pacemaker's Cluster Information Base (CIB).
 
 
-Table of Contents
------------------
-
 .. toctree::
    :maxdepth: 3
    :numbered:
@@ -34,9 +29,5 @@ Table of Contents
    status
    multi-site-clusters
    ap-samples
-
-Index
------
-
-* :ref:`genindex`
-* :ref:`search`
+   :ref:`genindex`
+   :ref:`search`