README : section sur les bonnes pratiques

README.md

@@ -22,6 +22,20 @@ scripts](#write-a-launching-script) to make it work as intended.
 `qemush` is **easy to setup** : you can make it work in a few steps, see
 section [Installation instructions](#installation-instructions).
 
+## Good practices?
+
+Here is a list of good practices forced by `qemush`.
+
+- **Processes running as user `qemu`**: members of group `qemu` can manage
+the same virtual machines
+- **Modularization**: `qemush` launching scripts are intended to be
+stackable to reuse common `qemu` parameters in all virtual machines
+needing them
+- **Process supervision**: `qemush` uses `screen` to supervise processes
+and keep track of them
+- **Copy-on-write**: images are formatted using `qcow2` to use less space
+on disk
+
 ## Dependencies
 
 - `qemu` - this is literally a QEMU wrapper so there's a chance you'll