Update README.rst

Author: alexanderdean

README.rst

@@ -44,11 +44,10 @@ Contributing quickstart
 
 ::
 
-  $ git clone --recursive https://github.com/snowplow/dev-environment.git
-  $ cd dev-environment
-  $ ansible-playbook /vagrant/ansible-playbooks/snowplow-python-tracker.yml --inventory-file=/home/vagrant/ansible_hosts --connection=local
-  $ cd /vagrant/snowplow-python-tracker
-  $ ./runtests.sh
+  guest$ git clone --recursive https://github.com/snowplow/dev-environment.git && cd dev-environment
+  guest$ vagrant up && vagrant ssh
+   host$ ansible-playbook /vagrant/ansible-playbooks/snowplow-python-tracker.yml --inventory-file=/home/vagrant/ansible_hosts --connection=local
+   host$ /vagrant/snowplow-python-tracker/runtests.sh
 
 Copyright and license
 #####################