update README

README.md

@@ -6,10 +6,9 @@ Stores and retrieves a YAML configuration file for use with the cobox stack. Als
 
 ```js
 const Config = require('cobox-config')
-const crypto = require('cobox-crypto')() // or some other crypto scheme
+const storage = './storage'
 
-var storage = './storage'
-var config = Config(storage)
+const config = Config(storage)
 ```
 
 ## API
@@ -28,21 +27,21 @@ Load from YAML, path set using the storage path when initialising. This is calle
 
 ```
 var key = group.name || group.address || group.address.toString('hex')
-config.groups.get(group)
+config.groups.get(key)
 ```
 
 Get a group from the config
 
 ```
 var key = group.name || group.address || group.address.toString('hex')
-config.groups.set(group, { name, address, encryptionKey })
+config.groups.set(key, { name, address, encryptionKey })
 ```
 
 Add a group to the config
 
 ```
 var key = group.name || group.address || group.address.toString('hex')
-config.groups.delete(group)
+config.groups.delete(key)
 ```
 
 Remove a group from the config
@@ -52,6 +51,3 @@ config.groups.list()
 ```
 
 List saved groups
-
-## Future Features
-* Store names against ID's in YAML config file for multiple identity capability