central readme

README.md

@@ -2,6 +2,22 @@
 
 This program and compiler repository accompanies the textbook
 
-[Fehr and Kindermann (2018). Introduction to Computational Economcis Using Fortran. Oxford University Press.](https://global.oup.com/academic/product/introduction-to-computational-economics-using-fortran-9780198804406?prevSortField=1&sortField=8&start=0&resultsPerPage=20&prevNumResPerPage=20&lang=en&cc=no)
+    [Fehr and Kindermann (2018), Introduction to Computational Economcis Using Fortran, Oxford University Press.](https://global.oup.com/academic/product/introduction-to-computational-economics-using-fortran-9780198804406?prevSortField=1&sortField=8&start=0&resultsPerPage=20&prevNumResPerPage=20&lang=en&cc=no)
+
+as well as its exercise and solution manual. When downloading or cloning this repository, you will be able to install a suitable Fortran compiler on your operating system and you will obtain all codes that come with the books.
+
+## Structure of this respository
+
+1. All Fortran codes for the book are stored in the folder [code-book](https://github.com/fabiankindermann/ce-fortran/tree/main/code-book).
+2. All Fortran codes for the solution manual are stored in the folder [code-solution](https://github.com/fabiankindermann/ce-fortran/tree/main/code-solution).
+3. Installation instructions and packages for different operating systems as well as Docker containers can be found in the folder [installation](https://github.com/fabiankindermann/ce-fortran/tree/main/installation). Just choose your operating system and learn how to install a Fortran compiler and our toolbox on your computer. Refer to the `README.md` files for further instructions.
+
+## Further Information
+
+For further information, please visit www.ce-fortran.com.
+
+There you will find:
+1. A documentation of the toolbox.
+2. A forum for discussion about certain issues.
+3. A collection of links for further developing your programming skills.
 
-as well as its exercise and solution manual. When downloading or cloning this repository, you will be able to install a suitable Fortran compiler on your operating system and will obtain all codes that come with the books.