document graphite root password

README.rdoc

@@ -8,6 +8,9 @@ Ubuntu 10.04 (Lucid)
 
 = ATTRIBUTES:
 
+node[:graphite][:password] sets the default password for graphite
+"root" user.
+
 = USAGE:
 
 recipe[graphite] should build a stand-alone Graphite installation.
@@ -18,9 +21,6 @@ to use it.
 
 = CAVEATS:
 
-I didn't see an easy way to set Graphite's credentials easily.
-I set those to root/root with an email address going no where.
-
 Ships with two default schemas, stats.* (for Etsy's statsd) and a
 catchall that matches anything. The catchall retains minutely data for
 13 months, as in the default config. stats retains data every 10 seconds