Update README: Add table of contents

README.md

@@ -14,3 +14,23 @@ Basics of setting up a single Linux server/client environment
 - All bourne shell files (sh) presented in this repository are not directly related to the exercises but they are useful in some situations.
 
 - **NOTE!** Instructions in this repository may not directly apply to your setting. The instructions have not been tested in a production environment, so if you decided to use them in your system configuration, you should apply them with care. I do not take any responsibility in a case of failure or broken system configurations.
+
+---------------------------
+
+## Table of contents
+
+- [Exercise 1](https://github.com/Fincer/linux_server_setup/blob/master/exercises/h1.md)
+
+- [Exercise 2](https://github.com/Fincer/linux_server_setup/blob/master/exercises/h2.md)
+
+- [Exercise 3](https://github.com/Fincer/linux_server_setup/blob/master/exercises/h3.md)
+
+- [Exercise 4](https://github.com/Fincer/linux_server_setup/blob/master/exercises/h4.md)
+
+- [Exercise 5](https://github.com/Fincer/linux_server_setup/blob/master/exercises/h5.md)
+
+- [Exercise 6](https://github.com/Fincer/linux_server_setup/blob/master/exercises/h6.md)
+
+- [Exercise 7](https://github.com/Fincer/linux_server_setup/blob/master/exercises/h7.md)
+
+- [Exam](https://github.com/Fincer/linux_server_setup/blob/master/exercises/exam.md)