Section about importing files / tex files in particular

README.md

@@ -376,4 +376,37 @@ pages    = {<PAGES_OF_NEWSPAPER_RELEVANT>},
 
 To cite your sources you've defined in your bibliography file, you can use the syntax of `\cite{<CITING_ID>}` as you can
 see, you need your citing-id here again. This is to reference your citing in the text to the correct entry in your
-bibtex-file.
+bibtex-file.
+
+# Importing other files
+
+With LaTeX you can import other files (such as other LaTeX files or pdfs) into your main file. This is very useful for
+attachments or external documents, which you want to include in your documentation.
+
+## Import .tex files
+
+To import .tex files, you can use `\input{<FILEPATH>}` or `\import{<FILEPATH>}`.
+
+## Import one .tex file
+
+To import a single text file, you can just use `\input{<FILEPATH>}`.
+
+## Import multiple .tex files after each other
+
+If you want to import multiple .tex files directly after each other, the syntax is a bit special. You use
+`\input{<FILEPATH>}` for the first .tex file, and `\import{<FILEPATH>}` for all the following .tex files. As soon as
+there is a text, heading or float (graphics/tables) between two imported .tex files, you can use `\input{<FILEPATH>}`
+again. See the example below for clarification.
+
+```latex
+\input{<FILEPATH_1>}
+\include{<FILEPATH_2>}
+\include{<FILEPATH_3>}
+\include{<FILEPATH_4>}
+
+
+\section{New header}
+This is a text for this header.
+
+\input{<FILEPATH_5>}
+```