Add Super Productivity to Productivity section

Author: johannesjo

categories/productivity.md

@@ -41,6 +41,7 @@ A curated list of open-source tools for note-taking, file management, task track
 | [**Remindly**](https://github.com/blanyal/Remindly) | A simple and user-friendly application for creating reminders. | `Java` | `Apache-2.0` | 578 | — |
 | [**ShutUp!**](https://github.com/RitwickVerma/ShutUp) | An app to automatically silence your phone based on your calendar events. | `Java` | `GPL-3.0` | 20 | — |
 | [**Skiff**](https://github.com/skiff-org/skiff-apps) | A suite of end-to-end encrypted, private email, calendar, and docs apps. | `TypeScript` | `GPL-3.0` | 952 | — |
+| [**Super Productivity**](https://github.com/johannesjo/super-productivity) | An open-source to-do list and time tracker with timeboxing, Jira/GitHub/GitLab integration. | `TypeScript` | `MIT` | 18.0k | [![Google Play](https://upload.wikimedia.org/wikipedia/commons/7/78/Google_Play_Store_badge_EN.svg)](https://play.google.com/store/apps/details?id=com.superproductivity.superproductivity) |
 | [**Swiftnotes**](https://github.com/adrianchifor/Swiftnotes) | A simple and elegant note-taking application, simplified for quick use. | `Java` | `Apache-2.0` | 134 | — |
 | [**Tasks**](https://github.com/tasks/tasks) | A CalDAV-based task management app for Android. | `Kotlin` | `GPL-3.0` | 5.1k | — |
 | [**Text Fairy**](https://github.com/renard314/textfairy) | An OCR app that converts images to text, which can then be edited or shared. | `C` | `Apache-2.0` | 820 | [![Google Play](https://upload.wikimedia.org/wikipedia/commons/7/78/Google_Play_Store_badge_EN.svg)](https://play.google.com/store/apps/details?id=com.renard.ocr) |