change content of why slide

2022/2022-06-07_git-trilogy-part-2/slides/why.md

-# Why we are here today
+# Integrated development environment (IDE)
 
-You already know how to work with repository online via Web IDE (Trylogyof git -Part I).
+Most of you already know how to contribute to a repository directly online via Gitlab's Web IDE ([Trilogy of git, Part I](https://courses.lcsb.uni.lu/2022-05-31_git-trilogy-part-1/)).
 
-Now imagine you have 11 hours flight starts at 8 am. You won't be sleeping and cannot work as there will be no Internet.
+However, Gitlab's Web IDE is rather limited if you want to:
 
-What to do?
-
-Prepare your laptop to work offline. 
-
-In this course we will learn how to contribute to a common project working on you laptop via Visual Studio Code (VS Code).<br><br>
-
-We chose VS Code because
+- work efficiently
+- work with several repositories at the same time
+- work offline
+- make changes to several documents all at once
+- use find/replace features
+- ...
 
+In this course we will learn how to contribute to a common project working on you laptop via [Visual Studio Code](https://code.visualstudio.com/) (VS Code):
 - Available for macOS, Linux, and Windows
 - Open source (free)
-- Connected with Git
-- Suggest next git step based on your activity 
+- Easy to contribute using `git`
+- Powerful tool and widely used