Update README

I've tried to make this reflect the current reality:
- virtualenv is basically dead (thanks shinken), remove references
  (if you are reading this commit message, please try and convince the shinken
  people to support installing in virtualenvs! the code is all built in, it
  just can't be used)
- List tested roles
- Better role usage example
- Combined Dependencies and Requirements

README.md

@@ -2,14 +2,18 @@ Shinken
 =======
 
 This role is to install Shinken and configure your hosts and services.
-Currently at an early stage and not quite ready for other peoples networks.
-
-virtualenv support was coded but since shinken doesn't play nicely in a
-virtualenv those code paths have been disabled.
 
 Requirements
 ------------
 
+If installing through pip, no external dependencies should be required.
+
+This role has been tested on:
+- Debian Jessie (8.4)
+- Centos 6.8
+- Amazon Linux AMI release 2016.09
+
+It is likely to work on others (eg Ubuntu, RedHat, Fedora, ...), it simply hasn't been run there by me.
 
 Role Variables
 --------------
@@ -70,22 +74,19 @@ have not been implemented yet)
      - { host_name: 'shinken.io', parent: 'modem.local', hostgroups: [ 'remote-server', 'web-server' ] }
 
 
-Dependencies
-------------
-
-This module requires epel on centos for virtualenvs and shinken packages. Roles
-to perform these tasks are below, but any roles / tasks to organise the
-dependenies will work.
-
-    ansible-galaxy install wtanaka.virtualenv
-    ansible-galaxy install geerlingguy.repo-epel
 
 Example Playbook
 ----------------
 
 Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
 
-    - hosts: shinken
+    - hosts: monitoring
+      vars:
+        shinken_hosts:
+         - { host_name: 'router.local' , hostgroups: [ 'infrastructure' ]}
+         - { host_name: 'modem.local', parent: 'router.local', hostgroups: [ 'appliances' ] }
+        shinken_contacts:
+         - { contact_name: 'guest', email: 'guest@localhost', password: 'password'}
       roles:
          - { role: goetz.shinken, shinken_broker_modules: webui2 }