Add Heimdall (#1565)

README.md

@@ -1044,6 +1044,7 @@ See https://github.com/n1trux/awesome-sysadmin#metric--metric-collection
 - [Baby Buddy](https://github.com/cdubz/babybuddy) - Helps caregivers track baby sleep, feedings, diaper changes, and tummy time. ([Demo](https://babybuddy.herokuapp.com/)) `BSD` `Python`
 - [Dj Diabetes](https://github.com/foxmask/dj-diabetes) - My Glucose Manager - follow your daily health. `BSD` `Python`
 - [Habitica](https://habitica.com/) - Habit tracker app which treats your goals like a Role Playing Game. Previously called HabitRPG. ([Source Code](https://github.com/HabitRPG/habitrpg)) `GPL-3.0/CC-BY-NC-SA-3.0/CC-BY-SA-3.0` `Nodejs`
+- [Heimdall](https://heimdall.site/) - Heimdall is an elegant solution to organise all your web applications. ([Source Code](https://github.com/linuxserver/Heimdall)) `MIT` `PHP`
 - [Homepage](https://github.com/tomershvueli/homepage) - Simple, standalone, self-hosted PHP page that is your window to your server and the web. `MIT` `PHP`
 - [iDashboard-PHP](https://github.com/causefx/iDashboard-PHP) - HTPC Dashboard to load website services. `MIT` `PHP`
 - [Organizr](https://github.com/causefx/Organizr) - Organizr aims to be your one stop shop for your Servers Frontend. `GPL-3.0` `PHP`