Procedure:
1. Open phpMyAdmin and add a new column to your k2_tags table
- Name tag_desc
- Type mediumtext
- Collation utf8_general_ci
- Attributes (empty)
- Null Yes
- Default NULL
2. Modify Files:
Please refer to my K2 project fork on GitHub
When you're done, the tag description will be visible on the front end like this: