Issue #3342294: Clean up documentation

README.md

-# CONFIG PATCH
-
-## INTRODUCTION
+# Config Patch
 
 This module provides a framework for providing patch files for config (the 
 differences between active configuration and sync configuration). For a site 
@@ -19,26 +17,49 @@ config synchronization pages listing config that is out of sync and providing a
 button to output the patch in various forms. It also adds a button to the admin 
 toolbar that shows the number of configuration items that are out of sync.
 
-Available output plugins:
+**Available output plugins:**
 
 - Text: provides text output of a unified diff patch
 - [Gitlab](https://drupal.org/project/config_patch_gitlab): provides submission 
 to Gitlab repositories using MR-by-email functionality.
 
-Similar modules:
+**Similar modules:**
 
 - [Config Partial Export](https://www.drupal.org/project/config_partial_export): 
 export a tarball of config ymls that differ between sync and active
 
-## REQUIREMENTS
+For a full description of the module, visit the
+[project page](https://www.drupal.org/project/config_patch).
+
+Submit bug reports and feature suggestions, or track changes in the
+[issue queue](https://www.drupal.org/project/issues/config_patch).
+
+
+## Table of contents
+
+- Requirements
+- Installation
+- Configuration
+- Maintainers
+
+
+## Requirements
 
 This module requires no modules outside of Drupal core.
 
-## INSTALLATION
 
-Install as you would normally install a contributed Drupal module. Visit 
-https://www.drupal.org/node/1897420 for further information.
+## Installation
+
+Install as you would normally install a contributed Drupal module. For further
+information, see
+[Installing Drupal Modules](https://www.drupal.org/docs/extending-drupal/installing-drupal-modules).
+
+
+## Configuration
+
+1. Configure this module at `/admin/config/development/config_patch`
+
 
-## CONFIGURATION
+## Maintainers
 
-Configure this module at /admin/config/development/config_patch
+- Andy Hebrank - [ahebrank](https://www.drupal.org/u/ahebrank)