Update README

README.md

@@ -1,10 +1,10 @@
 # PlayerPositions [![Build Status](https://travis-ci.org/the-obsidian/PlayerPositions.svg?branch=master)](https://travis-ci.org/the-obsidian/PlayerPositions)
 
-Synchronizes Minecraft groups with Discourse groups
+Writes player positions to a JSON file for use with the dynamic map
 
 ## Dependencies
 
-* Vault
+* none
 
 ## Installation
 
@@ -18,32 +18,16 @@ Synchronizes Minecraft groups with Discourse groups
 PlayerPositions has several options that can be configured in the `config.yml` file:
 
 ```yaml
-# The URL of your Discourse installation (without the trailing slash)
-discourse-url: http://forum.example.com
-
-# A mapping between Discourse groups (by integer ID) and Minecraft groups (by name)
-groups:
-
-  # Add user to groupname when they are in Discourse group 4
-  - discourse: 4
-    minecraft: groupname
-
-  # Remove user from groupname when they are not in Discourse group 4
-  - discourse: 4
-    minecraft: groupname
-    remove: true
-
-  # Add user to guestgroup if they do not have any Discourse groups
-  - discourse: 0
-    minecraft: guestgroup
+save-interval: 3000
+output-file: world/markers.json
+write-spawn: false
+date-format: yyyyMMdd HH:mm:ss
 ```
 
-`discourse` keys are the IDs of your chosen Discourse groups.  A negative number means the absence of the group, so `discourse: -20` would target users who were not a member of group `20`.  `0` is a special group meaning users who are not a member of any Discourse groups.
-
 ## Features
 
-* Synchronizes Minecraft groups with Discourse groups on player join
+* Writes player positions to a JSON file for use with the dynamic map
 
 ## Upcoming Features
 
-* Add more hooks for synchronization, including recurring tasks and possibly webhooks
+* None planned