Add standardized colors for hosts

Guides/fish.md

@@ -27,7 +27,19 @@ A customization script is also available : `Install/fish_custom`. This script co
 ### Standardized colors for users
 
 jovian -> yellow
+
 gituser -> magenta
+
 postgres -> blue _(beware, the home folder is in a tricky place)_
+
 root -> red
 
+### Standardized colors for hosts
+
+Server always powered : blue
+
+Server powered on demand : yellow
+
+Server powered on schedule : red
+
+Laptop : magenta