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docs/user-guide/gantt-chart/scheduling/README.md

@@ -45,8 +45,7 @@ Changing to the **manual scheduling mode makes sense if**
 - you don't want a parent work package's dates being updated automatically when changing the children's dates, or
 - you don't want a follower's start date be automatically updated when you change the predecessor's finish date
 
-<iframe width="560" height="315" src="https://www.youtube.com/watch?v=Me4cMULZKRM" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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+<iframe width="560" height="315" src="https://www.youtube.com/embed/Me4cMULZKRM" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
 
 ## Change mode
@@ -59,4 +58,4 @@ The pin symbol next to the date indicates that a work package is in manual sched
 
 ![image-20200929161237109](C:/Users/Matthias Laux/Documents/GitHub/openproject/docs/user-guide/gantt-chart/scheduling/image-20200929161237109.png)
 
-Changing back to automatic scheduling mode works the same way. Please note: When switching from manual scheduling to automatic scheduling some work packages' dates might be updated according to principles [stated above](#automatic-scheduling-mode). 
+Changing back to automatic scheduling mode works the same way. Please note: When switching from manual scheduling to automatic scheduling some work packages' dates might be updated according to principles [stated above](#automatic-scheduling-mode).