updated readme

README.md

@@ -1,3 +1,34 @@
-# ansible role Jetty
+# Ansible Role: Jetty
 Ansible Role for Jetty 
 
+## Requirements
+- https://github.com/geerlingguy/ansible-role-java
+
+## Role Variables 
+There are three defaults that can be altered:
+- `jetty_version: 9.4.9.v20180320`
+    - the jetty version - currently this is the only version supported
+    - the distribution file is pulled from `files`
+- `jetty_base_dir: /opt`
+    - where to unzip the jetty distribution
+- `jetty_home: /opt/jetty`
+    - symlink to become `JETTY_HOME`
+
+## Dependencies 
+- geerlingguy.java
+
+## Example Playbook 
+
+```
+- hosts: jetty_servers
+  roles:
+    - role: github.com/rhythmictech/ansible-role-jetty
+      become: yes
+```
+
+## License 
+MIT 
+
+## Author Information
+- https://www.rhythmictech.com
+- https://github.com/sblack4