fix: npx @flowgram.ai/form-materials cli (#203)

* fix: npx @flowgram.ai/form-materials cli

* docs: image size

README.md

@@ -130,4 +130,5 @@ Enjoy it!
 
 - Issues: [Issues](https://github.com/bytedance/flowgram.ai/issues)
 - Lark: Scan the QR code below with [Register Feishu](https://www.feishu.cn/en/) to join our FlowGram user group.
-<img src="./apps/docs/src/public/lark-group.png"/>
+
+<img src="./apps/docs/src/public/lark-group.png" width="200"/>

packages/materials/form-materials/bin/index.js

@@ -1,3 +1,5 @@
+#!/usr/bin/env node
+
 import chalk from 'chalk';
 import { Command } from 'commander';
 import inquirer from 'inquirer';