diff --git a/README.md b/README.md
index 74c5588..2a71e51 100644
--- a/README.md
+++ b/README.md
@@ -26,3 +26,12 @@ There are VMs for both, the old and the new, daemons configured. They do not sta
 
 ### Updating /etc/hosts
 On your first run, and whenever the hostnames change, you'll have to run `vagrant hostmanager app --provider docker` to update your /etc/hosts file.
+
+### Configuring the Environment
+A `vagrant.config.yml` can be used to configure the following properties of the environment. All values are optional.
+
+```yml
+wings: # the VM used for wings
+  cpus: 2
+  memory: 2048
+```
\ No newline at end of file