Maintenance.md

@@ -2,6 +2,14 @@
 
 There are several tasks that need to be done regularly.
 
+## Daily and Weekly Builds
+
+Using [scheduled pipelines](https://docs.gitlab.com/ee/ci/pipelines/schedules.html), the project gets rebuilt every 
+* day on `dev`
+* week on `master`
+
+See https://collaborating.tuhh.de/cfg0846/research-topics-mat-tuhh/-/pipeline_schedules to see the currently active schedules.
+
 ## Link Checker
 
 Thanks to the Rechenzentrum, all projects that are properly registered feature a link checker, that runs once a month and checks for dead links: