Fix ordering

Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>

roles/certbot/README

@@ -10,7 +10,7 @@ To use it:
   RewriteEngine on
   RewriteRule ^/\.well-known/(.*) /srv/web/acme-challenge/.well-known/$1 [L]
 
-2) ssh to the relevant box
+3) ssh to the relevant box
 
   # TODO: Fix selinux stuff - the cron won't work until it's fixed either.
   service httpd graceful
@@ -19,7 +19,7 @@ To use it:
     /srv/web/acme-challenge/ -d YOURINSTANCE.fedorainfracloud.org
   setenforce 1
 
-3) Add your SSL VirtualHost. An Ansible template with something like this
+4) Add your SSL VirtualHost. An Ansible template with something like this
    should possibly work:
 
   <VirtualHost {{public_ip}}:443 _default_:443>