Noted That:

• To install correctly this cleanse-rel-category-tag.zip .
• Fisrt Download the cleanse-rel-category-tag.zip to your computer
• Extract/Open cleanse-rel-category-tag.zip to Your Computer.
• Then, Find readme.txt file inside cleanse-rel-category-tag.zip and Open readme.txt .
• Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
• Then, Follow the Tips Below.

Start the Tips:

1. First Download " cleanse-rel-category-tag.zip " Plugin to your Local Computer. (Click Download)

2. Then, Login to your " yourdomain.com/wp-admin " Dashboard.

3. Then, Click on " Plugins " + " Add New " from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse " cleanse-rel-category-tag.zip "  Downloaded plugin from your computer, Where you downloaded cleanse-rel-category-tag.zip According to Step – 1 Above then, click on " Install Now"

6. Now, Click on " Active Plugin"

7. Then, See left sidemenu. " WordPress Fix HTML5 Validation " folder is added on left sidemenu. Now, Click on " WordPress Fix HTML5 Validation " folder.

   Noted that: If you do not see " WordPress Fix HTML5 Validation " folder on left sidemenu then, see at left sidemenu " Settings " or " Tools ".

8. Now you configure yourself oR Watch video tutorial below about  WordPress Fix HTML5 Validation Configurtions and Settings or How to work " WordPress Fix HTML5 Validation " in your WordPress site.

After Activated Plugin According to Step-6 then,

1. Go to " Plugins " + " Installed Plugin " from Wordpress Admin Panel Leftside Menu.
2. or Direct go to: https://yourdomain/wp-admin/plugins.php
3. Then, Find " WordPress Fix HTML5 Validation " Activated Plugin from Plugin List.
4. Then, Click on " Settings " from Plugin that is WordPress Fix HTML5 Validation
5. Now, Edit/Add/Config the setting and Click on " Save Changes " button,

This section describes how to install the plugin and get it working.

Best to just install through the WordPress admin panel.

Please note: If you’re using any plugin that caches content, you must navigate to
your cache plugin settings and hit “Flush Cache”. Otherwise rel=”category tag” will
be returned for every cached page, until each page expires (exceeds your cache timeout).

If you’re using a front-end caching system like Varnish, best just flush all content.
If you’re savvy enough to be running Varnish, you’ll understand how to do this.

You can also manually install this plugin, via the normal…

1. Upload plugin-name.php to the /wp-content/plugins/ directory
2. Activate the plugin through the ‘Plugins’ menu in WordPress
3. Place in your templates