feat: add online doc (#13)

* feat: add online site

* add

docs/guide/index.en-US.md

@@ -0,0 +1,23 @@
+## Introduction
+
+The Issues Helper is a GitHub Action that easily helps you automatically manage issues.
+
+### What are GitHub Actions?
+
+Automate, customize, and execute your software development workflows right in your repository with GitHub Actions. You can discover, create, and share actions to perform any job you'd like, including CI/CD, and combine actions in a completely customized workflow. [More](https://docs.github.com/en/free-pro-team@latest/actions).
+
+`issues-helper` is based on this, using GitHub Actions to help you deal with various operations on issues.
+
+### ✨ Feature
+
+- 😎 Complete free
+- 🚀 Fully automatic
+- 🏖 Hosted on the GitHub server, as long as GitHub is not down, it is not affected
+
+### ⚡ Feedback
+
+You are very welcome to try it out and put forward your comments. You can use the following methods:
+
+- Report bugs or consult with [Issue](https://github.com/actions-cool/issues-helper/issues)
+- Discuss via [Discussions](https://github.com/actions-cool/issues-helper/discussions)
+- Submit [Pull Request](https://github.com/actions-cool/issues-helper/pulls) to improve the code of `issues-helper`