Rename of tabs, restuctured content, add linux and python description

docs/description.md

+@ todo needs revision
 ## General Description
 The general overview of the UNICADO process chain is shown below.
 <figure markdown>
@@ -16,7 +17,7 @@ whereas the workflow of UNICADO is programmed in **RCE** (remote control
 environment by DLR).
 
 !!! note
-    You can refer to the [Module Overview](modules/overview.md) for a list of all available modules.
+    You can refer to the [Module Overview](documentation/overview.md) for a list of all available modules.
 
 
 ## Training videos

docs/developer/build-environment/linux.md

@@ -10,8 +10,11 @@ We use the basic linux tools to build *UNICADO* on Linux.
 The tools used are:
 
 - Compiler: `GCC` + `make`
-- Generator tool: `CMake`
+- Generator tool: `CMake` (more infos [here](../build/general.md))
 - Package manager: → The package manager of your **Linux** distribution should suffice
+- some other tools (Python, Git - see below)
+
+>You can use _Visual Studio Code_ as your IDE which will integrate everything, but since we are not prescribing any IDE, this will only show you how to setup the build tools. :point_up:
 
 ---
 
@@ -40,10 +43,26 @@ If you distribution is not listed here, make sure you at least install:
 ---
 
 ## Install Other Tools
-For the other tools, we assume you know how to use your package manager. :wink:
-Please install the following:
+Please install the following as well:
 
 |Package|Version|
 |---|---|
+|`git`| |
 |`python`| Preferably **3.11**|
+|`pyenv`| |
 |`cmake`| >= **3.29**|
+|`matplotplusplus`| |
+
+For Python, you can install it:
+=== "Arch"
+
+    ```{.sh .copy}
+    sudo pacman -S pyenv
+    pyenv install 3.11.10
+    ```
+
+!!! important 
+    Currently, `matplotplusplus` has to be cloned manually into the submodule `aircraftdesign`. Sometimes here are connection problems when doing so. The command that currently works is 
+    ```{.sh .copy}
+    git clone --depth=1 --shallow-submodules https://github.com/alandefreitas/matplotplusplus.git 
+    ```
\ No newline at end of file