update help text for metric command

lib/api/metric.js

@@ -151,10 +151,15 @@ module.exports = {
     },
     getHelp: function(){
         return [
-            "Metric Options:",
-            "  --tags <tags>  a comma separated list of \"tag:value\"'s",
-            "  --host <host>  the hostname that should be associated with this metric",
-            "  --type <type>  the type of metric \"gauge\" or \"counter\""
+            "Metric:",
+            "  Commands:",
+            "    send <metric> <point>        add a new datapoint for <metric> for right now",
+            "    query <from> <to> <query>    query for <query> between <from> and <to> POSIX timestamps",
+            "",
+            "  Options:",
+            "    --tags <tags>                a comma separated list of \"tag:value\"'s",
+            "    --host <host>                the hostname that should be associated with this metric",
+            "    --type <type>                the type of metric \"gauge\" or \"counter\""
         ]
     },
     handleCli: function(subcommand, args, callback){