Alex Hedström

DevDocs is a WordPress plugin for publishing clear, organised developer documentation on your site. It gives you a documentation page with a collapsible sidebar for browsing sections and a main content area for reading articles.
Key Features
<ul>
<li>Documentation articles and updates — Publish help articles and version updates in one place.</li>
<li>Organised sections — Group your content into folders and sub-folders for easier browsing.</li>
<li>Sidebar navigation — Visitors can move between the overview, sections, articles, and changelog from one menu.</li>
<li>Instant search — Quickly find articles from the sidebar as you type.</li>
<li>Mobile-friendly layout — The documentation view works cleanly on smaller screens.</li>
<li>Welcome screen — Show an introduction, helpful topic cards, and your latest update before a visitor opens an article.</li>
<li>Changelog timeline — Display product updates in a clear version-by-version timeline.</li>
<li>Custom colours — Match the documentation area to your brand with built-in colour settings.</li>
<li>Full-page layout option — Display your documentation in a distraction-free full-browser view.</li>
<li>Article guidance — Help readers stay oriented with breadcrumbs, last updated dates, and previous/next article links.</li>
<li>Manual ordering — Choose the order in which articles appear inside each section.</li>
<li>Translation-ready — Includes English language files and a translation template for other languages.</li>
</ul>
<h3>Usage</h3>
<h4>Documents</h4>
Add your documentation articles in DevDocs and assign them to one or more Topics so they appear in the right place in the sidebar. Use Order if you want to control which articles appear first.
<h4>Topics</h4>
Use Topics to build your sidebar structure. You can create main sections and place sub-sections inside them, then use Order to control how they are listed.
<h4>Changelog</h4>
Each changelog entry supports: 
* A Version Number and Release Date. 
* A summary description. 
* Update items grouped as Added, Changed, Fixed, Removed, Deprecated, or Security.
<h4>Settings</h4>
Navigate to DevDocs → Settings to configure:
<ul>
<li>Documentation Page — The WordPress page that renders the docs layout.</li>
<li>Documentation Name — Label shown in the sidebar header.</li>
<li>Welcome Heading / Message — Text displayed on the overview screen.</li>
<li>Show Topic Cards — Toggle topic card grid on the welcome screen.</li>
<li>Show Latest Update — Toggle the latest changelog snippet on the welcome screen.</li>
<li>Full Page Mode — Expand the documentation into a full-browser layout.</li>
<li>Color Scheme — Choose the colours used across the documentation area.</li>
</ul>

DevDocs

Developer software documentation with folder-based navigation, changelog tracking, and customizable color schemes.

Edward Caissie

A collection of functions and code that can be used to extend the capabilities of WordPress Parent-Themes and Child-Themes. 
* Copyright 2011-2014 Edward Caissie (email : edward.caissie@gmail.com)
This program is free software; you can redistribute it and/or modify 
 it under the terms of the GNU General Public License version 2, 
 as published by the Free Software Foundation.
You may NOT assume that you can use any other version of the GPL.
This program is distributed in the hope that it will be useful, 
 but WITHOUT ANY WARRANTY; without even the implied warranty of 
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
 GNU General Public License for more details.
You should have received a copy of the GNU General Public License 
 along with this program; if not, write to the Free Software 
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
The license for this software can also likely be found here: 
 http://www.gnu.org/licenses/gpl-2.0.html
<ul>
<li>
Please note, support may be available on the WordPress Support forums; but, it may be faster to visit http://buynowshop.com/plugins/bns-theme-add-ins/ and leave a comment with the issue you are experiencing.
</li>
<li>
This plugin utilizes three text files if included with the active theme, although these files are not required for the plugin to work correctly they will enhance its functionality if they exist:
<ul>
<li><code>readme.txt</code></li>
<li><code>changelog.txt</code></li>
<li><code>support.txt</code></li>
</ul>
</li>
</ul>

BNS Theme Add-Ins

Extend the capabilities of WordPress Parent-Themes and Child-Themes

DevDocs vs BNS Theme Add-Ins