Created cli command. Updated tracker script.

cli/index.js

@@ -0,0 +1,25 @@
+#!/usr/bin/env node
+
+require('dotenv').config();
+const yargs = require('yargs');
+const chalk = require('chalk');
+const createAccount = require('./create-account');
+
+const cmd = yargs.usage('Usage: umami <command> [arguments]').help('h').alias('h', 'help');
+
+const { argv } = cmd;
+const {
+  _: [action, ...params],
+} = argv;
+
+const exec = async () => {
+  if (action === 'create') {
+    await createAccount();
+  } else {
+    cmd.showHelp();
+  }
+
+  process.exit(0);
+};
+
+exec();