Update slackin

bin/slackin

@@ -6,7 +6,7 @@ var slackin = require('../node');
 
 program
 .version(pkg.version)
-.usage('[options] <slack-subdomain> <api-token>')
+.usage('[options] <team-id> <api-token>')
 .option('-p, --port <port>', 'Port to listen on [$PORT or 3000]', require('hostenv').PORT || 3000)
 .option('-h, --hostname <hostname>', 'Hostname to listen on [$HOSTNAME or 0.0.0.0]', require('hostenv').HOSTNAME || '0.0.0.0')
 .option('-c, --channels [<chan>]', 'One or more comma-separated channel names to allow single-channel guests [$SLACK_CHANNELS]', process.env.SLACK_CHANNELS)