DC - updated README to reflect multi-OS changes

Section1/show_version/README.md

-# Show version
+# Hosts
 
-You need to update the hosts file : replace the "veos" host with one to which you can connect with ssh.
+The hosts file in this directory has two hosts defined - one vEOS, one JunOS.
 
-Run ``ansible-playbook -i hosts show_version.yaml``.
+```
+[all:vars]
+ansible_connection=ssh
+ansible_user=zork
+ansible_host=localhost
+
+[veos_hosts]
+veos ansible_port=9022 ansible_ssh_pass=swordfish
+
+#
+# Why different passwords? JunOS is a lot stricter. Good!
+#
+[junos_hosts]
+vSRX ansible_port=9023 ansible_ssh_pass=Swordfish123
+```
+
+You will need to replace the host information to match your test/learning environment.
+
+Run ``ansible-playbook -i hosts show_version.yaml`` to try out the playbook.
 
 # Show the full responses to a module invocation
 
@@ -10,11 +28,10 @@ This will show __all__ of the responses, including the bits that most people don
 
 Run ``ansible-playbook -i hosts show_all_responses.yaml``
 
-# Multiple lines of commands
+# Multiple commands in a single task
 
 Run ``ansible-playbook -i hosts show_version_and_uptime.yaml``
 
 # Device specific
 
-There are device-specific `show version` playbooks. JunOS in particular paginates its output - so you have to run the command through `no-more` to stop it printing `--More--` and pausing for keyboard input which will never come.
-
+There are device-specific `show version` playbooks. JunOS in particular paginates its output - so you have to run the command through `no-more` to stop it printing `--More--` and pausing for keyboard input...which since it's hidden by Ansible will never come.