Update python-modularization.md:

- Corrected the File structure plaintext box

docs/developer/style/python-modularization.md

@@ -168,21 +168,21 @@ rAircraftDesign
 |  |- src: Contains source code (see [1])
 |  |  |- blended_wing_body: Folder and files for blended wing body configurations (see [2])
 |  |  |- tube_and_wing: Folder and files for tube and wing configurations (see [2])
-|  |  |  | - empirical: Folder and files for empirical calculation methods (see [3])
-|  |  |  |  | - operating_cost_estimation_tu_berlin: Files and folders necessary for calculating operating costs (see [4])
-|  |  |  |  |  | - general: [user layer] Files with functionalities independent of layer 4 value
-|  |  |  |  |  |  | - methodhtmlreport.py: Functionalities for data export to "cost_estimation.html" file (located in '...')
-|  |  |  |  |  |  | - methodplot.py: Plotting functionalities (plots saved to 'projects/CSR/CSR-02/reporting/plots')
-|  |  |  |  |  |  | - methodtexoutput.py: TeX report functionalities (output in '...')
-|  |  |  |  |  |  | - methodxmlexport.py: Data export functionalities to "cost_estimation_results.xml" file (located in 'projects/CSR/CSR-02/reporting/report_xml')
-|  |  |  |  |  | - kerosene: [user layer] Functionalities specific to kerosene
-|  |  |  |  |  |  | - methodkerosene.py: Module with calculation functions for kerosene-driven aircraft, implemented by the user
-|  |  |  |  |  | - liquid_hydrogen: [user layer] Functionalities specific to liquid hydrogen
-|  |  |  |  |  |  | - methodliquidhydrogen.py: Module with calculation functions for liquid hydrogen-driven aircraft, implemented by the user
-|  |  |  |  |  | - usermethoddatapreparation.py: Module providing functions for user data preparation
-|  |  |  | - datapostprocessing.py: Functions for data postprocessing
-|  |  |  | - datapreprocessing.py: Functions for data preprocessing
-|  |  |  | - readlayertext.py: Functions for reading layer information
+|  |  |  |- empirical: Folder and files for empirical calculation methods (see [3])
+|  |  |  |  |- operating_cost_estimation_tu_berlin: Files and folders necessary for calculating operating costs (see [4])
+|  |  |  |  |  |- general: [user layer] Files with functionalities independent of layer 4 value
+|  |  |  |  |  |  |- methodhtmlreport.py: Functionalities for data export to "cost_estimation.html" file (located in '...')
+|  |  |  |  |  |  |- methodplot.py: Plotting functionalities (plots saved to 'projects/CSR/CSR-02/reporting/plots')
+|  |  |  |  |  |  |- methodtexoutput.py: TeX report functionalities (output in '...')
+|  |  |  |  |  |  |- methodxmlexport.py: Data export functionalities to "cost_estimation_results.xml" file (located in 'projects/CSR/CSR-02/reporting/report_xml')
+|  |  |  |  |  |- kerosene: [user layer] Functionalities specific to kerosene
+|  |  |  |  |  |  |- methodkerosene.py: Module with calculation functions for kerosene-driven aircraft, implemented by the user
+|  |  |  |  |  |- liquid_hydrogen: [user layer] Functionalities specific to liquid hydrogen
+|  |  |  |  |  |  |- methodliquidhydrogen.py: Module with calculation functions for liquid hydrogen-driven aircraft, implemented by the user
+|  |  |  |  |  |- usermethoddatapreparation.py: Module providing functions for user data preparation
+|  |  |  |- datapostprocessing.py: Functions for data postprocessing
+|  |  |  |- datapreprocessing.py: Functions for data preprocessing
+|  |  |  |- readlayertext.py: Functions for reading layer information
 |  |- CMakeLists.txt: ...
 |  |- cost_estimation_conf.xml: General information for the cost estimation module, e.g., console output/log/report on/off settings and the path and name of the module configuration file
 |  |- cost_estimation.log: Logging messages for the current module