docs(guide): update README.md

Author: thexdev

README.md

@@ -4,10 +4,60 @@
 
 `@thexdev/biteship-nodejs` is unofficial NodeJS client for interacting with
 [Biteship API](https://biteship.com/en). Since Biteship does not provide package
-to interact with their API, I created this simple wrapper for our convenient.
-So, instead of calling the API and handle the request manually, we can do
-something like this:
+to interact with their API so, I created this simple wrapper for our convenient.
+Enjoy! 🚀 🚚
 
-```ts
-const response = await client.send(new RetrieveArea({ input: "Magelang" }))`;
+## Getting Started
+
+Before we go, let's ensure you are ready. First, you
+must ensure your node version is `^18.x` because this package is internally use
+[Headers](https://developer.mozilla.org/en-US/docs/Web/API/Headers?retiredLocale=id)
+object. After that, please [setup your Biteship API Key](https://biteship.com/en/docs/intro).
+Finish? Then, we are ready to go.
+
+## Installation
+
+The installation is simple! Just run this command.
+
+```bash
+npm i @thexdev/biteship-node
+```
+
+## How to Use
+
+> 💡 You can also find useful example [here](https://github.com/thexdev/biteship-nodejs/tree/main/examples).
+
+We need to use the `Biteship` and command class to perform a specific task. For
+example if we want to search some areas we can use the `RetreiveArea` command.
+
+```js
+// Using TypeScript
+import { Biteship, RetreiveArea } from '@thexdev/biteship-nodejs';
+
+// or using CommonJS
+const { Biteship, RetrieveArea } = require('@thexdev/biteship-nodejs');
+
+const biteship = new Biteship(process.env.BITESHIP_API_KEY);
+
+biteship.send(new RetriveArea({ input: 'Jakarta' })).then(console.log);
+// See the example result: https://biteship.com/en/docs/api/maps/retrieve_area_single
 ```
+
+I though this way looks better instead of calling the raw API using `fetch` or
+`axios` and handle each request manually 😅. For the command arguments, you can
+find it all on Biteship official documentation.
+
+## List of Commands
+
+- `CreateOrder`
+- `RetrieveArea`
+- `RetrieveCourierRates`
+- `RetrieveOrder`
+- `SearchRates`
+- More commands (soon)
+
+## Want to Support Me?
+
+All your support is much appreciated 🙏
+
+- [Buy Me Coffee](https://www.buymeacoffee.com/thexdev)