Added time tracking description

README.md

@@ -1910,6 +1910,8 @@ _Related: [Task Management & To-do Lists](#task-management--to-do-lists), [Softw
 
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+[Time-tracking software](https://en.wikipedia.org/wiki/Time-tracking_software) is a category of computer software that allows its employees to record time spent on tasks or projects.
+
 - [ActivityWatch](https://activitywatch.net) - An app that automatically tracks how you spend time on your devices. ([Source Code](https://github.com/ActivityWatch/activitywatch)) `MPL-2.0` `Python`
 - [Kimai](https://www.kimai.org/) - Kimai is a free & open source timetracker. It tracks work time and prints out a summary of your activities on demand. ([Demo](https://www.kimai.org/demo/), [Source Code](https://github.com/kevinpapst/kimai2/)) `MIT` `PHP`
 - [TimeTagger](https://timetagger.app) - An open source time-tracker based on an interactive timeline and powerful reporting. ([Demo](https://timetagger.app/app/demo), [Source Code](https://github.com/almarklein/timetagger)) `GPL-3.0` `Python`