fix: print help when no args passed

[skip ci]

Author: ankush

easy-install.py

@@ -318,3 +318,5 @@ def install_docker():
 			cprint("Emails with example.com not acceptable", level=1)
 			sys.exit(1)
 		setup_prod(args.project, args.sitename, args.email)
+	else:
+		parser.print_help()