mark Knowledge Management Tools section as related to Database Management section (#3812)

README.md

@@ -1146,7 +1146,7 @@ _See also: [awesome-sysadmin/IT Asset Management](https://github.com/awesome-fos
 
 [Knowledge management](https://en.wikipedia.org/wiki/Knowledge_management) is the collection of methods relating to creating, sharing, using and managing the knowledge and information.
 
-_Related: [Note-taking & Editors](#note-taking--editors), [Wikis](#wikis)_
+_Related: [Note-taking & Editors](#note-taking--editors), [Wikis](#wikis), [Database Management](#database-management)_
 
 - [Atomic Server](https://github.com/atomicdata-dev/atomic-data-rust) - Knowledge graph database with documents (similar to Notion), tables, search, and a powerful linked data API. Lightweight, very fast and no runtime dependencies. ([Demo](https://atomicdata.dev/)) `MIT` `Docker/Rust`
 - [Mindmaps](https://github.com/drichard/mindmaps) - Open source, offline capable, mind mapping application. ([Demo](https://www.mindmaps.app)) `AGPL-3.0` `HTML5`