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Co-authored-by: Ellen Seabrooke <ellen.seabrooke@ifb.uni-stuttgart.de>

docs/documentation/sizing/initial_sizing/index.md

@@ -12,7 +12,7 @@ To remind you of the concept of an initial sizing chart and design window, here
 and thrust to weight ratio within the borders are possible design points for the aircraft.
 ![](figures/sizing_chart.svg)
 
-The [Getting Started](getting_started.md) gives you a first insight in how to execute the tool and how it generally works.
+The [Getting Started](getting-started.md) gives you a first insight in how to execute the tool and how it generally works.
 
 So let's get started!