Simple typo fix in Windows install guide.
Simple typo fix in Windows install guide.

edf/drupal-vm,thom8/drupal-vm,joestewart/drupal-vm,kalamuna/drupal-vm,akeemw/drupal-vm,kalamuna/drupal-vm,akeemw/drupal-vm,Luciditi/drupal-vm,edf/drupal-vm,debugacademy/drupal-vm,Luciditi/drupal-vm,geerlingguy/drupal-vm,kentr/drupal-vm,UCEAP-IT/drupal-vm,geerlingguy/drupal-vm,thom8/drupal-vm,Luciditi/drupal-vm,nerdstein/drupal-vm,kentr/drupal-vm,edf/drupal-vm,UCEAP-IT/drupal-vm,thom8/drupal-vm,debugacademy/drupal-vm,nerdstein/drupal-vm,debugacademy/drupal-vm,debugacademy/drupal-vm,oxyc/drupal-vm,kentr/drupal-vm,kentr/drupal-vm,joestewart/drupal-vm,kalamuna/drupal-vm,oxyc/drupal-vm,akeemw/drupal-vm,nerdstein/drupal-vm,geerlingguy/drupal-vm,UCEAP-IT/drupal-vm,joestewart/drupal-vm,akeemw/drupal-vm,geerlingguy/drupal-vm,kentr/drupal-vm,oxyc/drupal-vm