Update README.md

README.md

@@ -8,14 +8,17 @@
 $ curl -fsSL https://raw.githubusercontent.com/MoOx/setup/master/setupsh/firstrun | zsh -s MoOx/setup
 ```
 
-The first run can easily take half of a day, with some human interactions to configure some part.
+The first run can take a couple of hours since this will download lot of apps. But you will be able to use your minimal dev environnement in a couple of minutes (dotfiles, text editor etc).
+You might need some human interactions to configure some part.
 
 ### Update & run
 
 ```console
 $ fliptable
 ```
 
+Update is pretty fast: it get latest update from remote and update some packages.
+
 ![kaboom](https://raw.githubusercontent.com/MoOx/setup/master/.kaboom.gif)
 
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