Fix virutalenv command.

EnvironmentConfig.wiki

diff --git a/EnvironmentConfig.wiki b/EnvironmentConfig.wiki
index 2832c5e..897468e 100644
--- a/EnvironmentConfig.wiki
+++ b/EnvironmentConfig.wiki
@@ -25,7 +25,7 @@
 
 Now, to actually set up the virtual environment. _cd_ yet again into your new project directory and enter the following:
 {{{
-virtualenv venv --no-site-packages venv
+virtualenv --no-site-packages venv
 source venv/bin/activate
 pip install django
 }}}