prerequisites.md in dev-lxc-2.2.2

- old
+ new

@@ -27,12 +27,10 @@
 
 #### Build the dev-lxc-platform VM
 
 This should take less than 15 minutes.
 
-While the VM is being created you are free to open a separate terminal and follow the remaining setup instructions.
-
 ```
 cd dev-lxc-platform
 kitchen converge
 ```
 
@@ -49,9 +47,15 @@
 ```
 brew install direnv
 ```
 
 Be sure to follow the [direnv install instructions](http://direnv.net/) to add the appropriate line to your user's shell rc file.
+
+Run the following to approve the `.envrc` file
+
+```
+direnv allow
+```
 
 #### Setup Networking
 
 Your workstation needs to know how to resolve the .lxc domain that dev-lxc containers use.
 