Split package and config installation for i3

Install/i3-install

@@ -1,6 +1,6 @@
 #!/bin/usr/fish
-
-sudo apt install i3
+# Install i3 config
+# You must have installed the i3 package before
 
 mkdir ~/.i3
 cp ./Templates/i3/config ~/.i3/

Install/ui-install

@@ -2,4 +2,6 @@
 
 # Graphic environment installation
 
-sudo apt install redshift ;
+## Windows manager
+## Install config with another script
+sudo apt install i3 ;