Update index.js

Author: leecheeyong

lib/index.js

@@ -4,6 +4,29 @@ import fs from 'fs';
 import minimist from 'minimist';
 
 const pkg = JSON.parse(fs.readFileSync("./../package.json", 'utf-8'));
-const argv = minimist(process.argv.slice(2));
+const argv = minimist(process.argv.slice(2), {
+    alias: {
+      'development': 'dev',
+      'stable': 'main'
+    }
+});
 const command = argv._[0];
+(async () => {
+switch(command) {
+    case "help":    
+    console.log(`
+    modmail.js ${pkg.version} - The modmailbot management tool
 
+    Commands: 
+        - [modmail create]  Create a new modmail bot
+        - [modmail config]  Configure a modmail bot
+        - [modmail version] Check for updates
+        - [modmail help]    Get help
+    
+    Arguments:
+        - [dir]   Directory name
+        - [port]  Specify port
+    `)
+    break;
+}
+})();