Updates links of getting started guides.

docs/getting-started/installation.md

@@ -49,6 +49,6 @@ There is no dedicated installer for developers. As a developer you are expected
 
 The necessary steps to get you up and running are:
 
-- Ensure you have [repository_access]()
-- Make sure your build system is working as explained in the [software_development_setup]().
-- Then follow the [build_instructions]() to build the software and create your own installer.
+- Ensure you have [cloned all repositories](../developer/get-source-code.md)
+- Make sure your build system is working as explained in the [Developer Prerequisites](../developer/build-environment/windows.md). *(Choose according to your operating system.)*
+- Then follow the [Build Instructions](../developer/build/cpp.md) to build the software and create your own installer.

docs/getting-started/takeoff.md

@@ -74,7 +74,7 @@ Therefore the tools can be executed based on their dependencies in the following
 ### Tool execution
 
 Finally we want to execute the tool. But what if we have noticed, that there are no executables in the tool folders? 🔥
-Then the executables have first to be build inside the working copy e.g. of the **rAIRCRAFTDESIGN** repo. Please follow the instructions at [[ software_development_setup/ ]] and [[ build_instructions/ ]]
+Then the executables have first to be build inside the working copy e.g. of the **rAIRCRAFTDESIGN** repo. Please follow the instructions at [Developer](../developer/contribute.md).
 
 If this is done already and an executable is present, then you can execute the respective tool from within the tool folder either on windows directly via double click or via a terminal
 - In cmd or powershell e.g. `initialSizing.exe`