Added a bit of explanation to installation page. Fixed links

Author: olasitarska

en/installation/README.md

@@ -1,3 +1,14 @@
+# If you're doing the tutorial at home
+
+If you're doing the tutorial at home, not at one of the [Django Girls events](http://djangogirls.org/events/), you can completely skip this chapter now and go straight to the [How the Internet works?](../how_the_internet_works/README.md) chapter. 
+
+This is because we cover these things in the whole tutorial anyway, and this is just an additional page that gathers all of the installation instructions in one place. The Django Girls event includes one "Installation evening" when we install everything to not bother with it during the workshop, so this is useful for us. 
+
+If you find it useful, you can follow through this chapter too. But if you wanna start learning things before installing bunch of stuff on your computer, skip this chapter and we will explain you the installation part later on. 
+
+Good luck!
+
+# Installation
 In the workshop you will be building a blog, and there are a few setup tasks in the tutorial which would be good to work through beforehand so that you are ready to start coding on the day.
 
 # Install Python
@@ -23,10 +34,10 @@ Go to [GitHub.com](http://www.github.com) and sign up for a new, free user accou
 
 Congratulations, you are are all set up and ready to go! If you still have some time before the workshop, it would be useful to start reading a few of the beginning chapters:
 
-* [How the internet works](http://tutorial.djangogirls.org/en/how_the_internet_works/README.html)
+* [How the internet works](../how_the_internet_works/README.md)
 
-* [Introduction to the command line](http://tutorial.djangogirls.org/en/intro_to_command_line/README.html)
+* [Introduction to the command line](../intro_to_command_line/README.md)
 
-* [Introduction to Python](http://tutorial.djangogirls.org/en/intro_to_command_line/README.html)
+* [Introduction to Python](../intro_to_command_line/README.md)
 
-* [What is Django?](http://tutorial.djangogirls.org/en/django/README.html)
+* [What is Django?](../django/README.md)