doc: Reword document titles

This patch attempts to standardise the document titles as well as
adding titles to documents that were missing one. The aim is to
remove needless references to "TF-A" or "Trusted Firmware" in the
title of every document and to make sure that the title matches
with the document content.

Change-Id: I9b93ccf43b5d57e8dc793a5311b8ed7c4dd245cc
Signed-off-by: Paul Beesley <paul.beesley@arm.com>
diff --git a/docs/process/coding-guidelines.rst b/docs/process/coding-guidelines.rst
index 644f828..def5bf9 100644
--- a/docs/process/coding-guidelines.rst
+++ b/docs/process/coding-guidelines.rst
@@ -1,7 +1,5 @@
-Trusted Firmware-A Coding Guidelines
-====================================
-
-
+Coding Style & Guidelines
+=========================
 
 .. contents::
 
diff --git a/docs/process/contributing.rst b/docs/process/contributing.rst
index bd950e5..8f8143f 100644
--- a/docs/process/contributing.rst
+++ b/docs/process/contributing.rst
@@ -1,5 +1,5 @@
-Contributing to Trusted Firmware-A
-==================================
+Contributor's Guide
+===================
 
 Getting Started
 ---------------
diff --git a/docs/process/index.rst b/docs/process/index.rst
index 91f1beb..aa5d6bb 100644
--- a/docs/process/index.rst
+++ b/docs/process/index.rst
@@ -7,7 +7,7 @@
    :numbered:
 
    release-information
-   security-center
+   security
    platform-compatibility-policy
    coding-guidelines
    contributing
diff --git a/docs/process/platform-compatibility-policy.rst b/docs/process/platform-compatibility-policy.rst
index e977e63..47b0e7e 100644
--- a/docs/process/platform-compatibility-policy.rst
+++ b/docs/process/platform-compatibility-policy.rst
@@ -1,5 +1,5 @@
-TF-A Platform Compatibility Policy
-==================================
+Platform Compatibility Policy
+=============================
 
 
 
diff --git a/docs/process/release-information.rst b/docs/process/release-information.rst
index 5531150..0b5e7d7 100644
--- a/docs/process/release-information.rst
+++ b/docs/process/release-information.rst
@@ -1,5 +1,5 @@
-TF-A Release Information
-========================
+Release Processes
+=================
 
 .. section-numbering::
     :suffix: .
diff --git a/docs/process/security-center.rst b/docs/process/security.rst
similarity index 98%
rename from docs/process/security-center.rst
rename to docs/process/security.rst
index 672c563..b4831c8 100644
--- a/docs/process/security-center.rst
+++ b/docs/process/security.rst
@@ -1,5 +1,5 @@
-Security Center
-===============
+Security Handling
+=================
 
 Security Disclosures
 --------------------