DOC: Cleaning up README.md

Author: William McLendon

Diff for: CHANGELOG.md

@@ -17,6 +17,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 #### Todo (for Unreleased)
 -->
 
+## [0.5.1] 2021-12-30
+#### Changed
+- Documentation updates
+
 ## [0.5.0] 2021-12-20
 #### Added
 - Open Source License approved. Adding 3-Clause BSD license files and

Diff for: doc/source/index.rst

@@ -26,7 +26,59 @@ Indices and Tables
 
 Overview
 ========
-TODO: This needs to be expanded for RTD.
+The ``SetProgramOptions`` package extends the
+`ConfigParserEnhanced <https://pypi.org/project/configparserenhanced/>`_
+package by adding additional *operations* for handling command-line
+options.
+
+The primary use case that provided the impetus to develop SetProgramOptions
+was to support complex configuration environments for a software project that
+is tested on a variety of platforms and architectures, including GPUs and HPC
+systems. This project is several million lines of code and has hundreds of
+CMake options in its configuration space.
+
+We developed SetProgramOptions and SetProgramOptions to allow our build system
+to use optimized .ini files to manage our configuration space.
+
+This package includes two classes:
+
+1. SetProgramOptions - A general purpose command line handler that handles
+   generic command line options.
+2. SetProgramOptionsCMake - A subclass of SetProgramOptions, this class further
+   extends SetProgramOptions by adding CMake-specific operations to provide
+   ease of use for CMake specific options. It also adds an additional generator
+   option to allow the generation of either *bash* style command line options
+   or a *CMake* source fragment file.
+
+An example .ini file using ``SetProgramOptions`` might look like:
+
+.. code-block:: ini
+    :linenos:
+
+    [Directory *nix]
+    opt-set ls
+
+This configuration is the SetProgramOptions version of a hello world example.
+Here, the ``opt-set ls`` option is specifying a single command line option
+which in this case is the command `ls`.
+
+We can expand this to add additional entries:
+
+.. code-block:: ini
+    :linenos:
+
+    [Directory *nix]
+    opt-set ls
+    opt-set -l
+    opt-set -r
+    opt-set -t
+    opt-remove -r
+
+When processed, this example would result in a concactenated string containing
+the command ``ls -l -t``. We threw in the ``opt-remove -r`` operation which
+*removed* the `-r` entry.
+
+For more details on how this is used, see the Examples section below.
 
 
 Examples

Diff for: pyproject.toml

@@ -1,7 +1,7 @@
 [tool.poetry]
 name = "setprogramoptions"
 description = "Program options configuration file reader using ConfigParserEnhanced."
-version = "0.5.0"
+version = "0.5.0.1"
 license = "LICENSE"
 readme = "README.md"
 keywords = [

Diff for: src/setprogramoptions/version.py

@@ -40,4 +40,4 @@
 # Note: When updating this we should also update the
 #       version string in the header docstrings for
 #       SetProgramOptions and the pyproject.toml file.
-__version__ = "0.5.0"
+__version__ = "0.5.0.1"