Update README.md

README.md

-This is a public repository that contains a collection of our current (and past) LinuxDays courses.
-
-# Downloading the course material
+# Courses
 
-Our course material (slides and several guides) are available as PDFs:
+This is a public repository that contains a collection of our current (and past) LinuxDays courses.
 
 Introduction:
-- [Free and Open Source Software](https://gitlab.ethz.ch/thealternative/courses/blob/master/FOSS_course/slides.pdf)
-- [Introduction to Linux](https://gitlab.ethz.ch/thealternative/courses/blob/master/intro_course/slides.pdf)
-- [Install Guide](https://gitlab.ethz.ch/thealternative/courses/blob/master/install_event/installguide_complete.pdf)
+- [Free and Open Source Software (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/FOSS_course/slides.pdf)
+- [Introduction to Linux (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/intro_course/slides.pdf)
+- [Install Guide](https://thealternative.ch/guides/install.php)
+- [Bash Guide](https://thealternative.ch/guides/bash.php)
 
 Console & Bash:
-- [Console Toolkit Part 1](https://gitlab.ethz.ch/thealternative/courses/blob/master/console_toolkit/console_toolkit_1.pdf)
-- [Console Toolkit Part 1&2](https://gitlab.ethz.ch/thealternative/courses/blob/master/console_toolkit/console_toolkit_2.pdf)
-- [Console Toolkit Exercises](https://gitlab.ethz.ch/thealternative/courses/blob/master/console_toolkit/exercise_files/exercises.pdf)
-- [Bash Course (Slides)](https://gitlab.ethz.ch/thealternative/courses/blob/master/bash_course/pres/pres.pdf)
-- [Bash Course (Guide)](https://gitlab.ethz.ch/thealternative/courses/blob/master/bash_course/guide/guide.pdf)
-- [Bash Course Exercises](https://gitlab.ethz.ch/thealternative/courses/blob/master/bash_course/exercisesheet/sheet.pdf) and [Solutions](https://gitlab.ethz.ch/thealternative/courses/blob/master/bash_course/exercisesheet/sol.pdf)
+- [Console Toolkit Part 1 (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/console_toolkit/console_toolkit_1.pdf)
+- [Console Toolkit Part 1&2 (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/console_toolkit/console_toolkit_2.pdf)
+- [Console Toolkit Exercises (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/console_toolkit/exercise_files/exercises.pdf)
+- [Bash Course (Slides) (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/bash_course/pres/pres.pdf)
+- [Bash Course (Guide) (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/bash_course/guide/guide.pdf)
+- [Bash Course Exercises (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/bash_course/exercisesheet/sheet.pdf) and [Solutions](https://gitlab.ethz.ch/thealternative/courses/blob/master/bash_course/exercisesheet/sol.pdf)
 
 Tools:
 - [Git](https://thealternative.ch/courses/git/git.html)