docs: update readme

Author: ije

README.md

@@ -6,11 +6,20 @@
   <a href="https://alephjs.org/docs">Docs</a> | <a href="./CONTRIBUTING.md">Contributing</a>
 </p>
 
-<p align="left">
-<code>$ deno run -A https://deno.land/x/aleph/install.ts</code>
-</p>
-
 <p align="left">
   <a href="https://discord.gg/pWGdS7sAqD"><img src="https://img.shields.io/discord/775256646821085215?color=%23008181&label=Chat&labelColor=%23111&logo=discord&logoColor=%23aaaaaa" alt="Chat"></a>
   <a href="https://twitter.com/intent/follow?screen_name=alephjs"><img src="https://img.shields.io/twitter/follow/alephjs?style=social" alt="Twitter"></a>
 </p>
+
+<details>
+  <summary>BOOM</summary>
+  <p>
+
+```bash
+// get started
+$ deno run -A https://deno.land/x/aleph/install.ts
+$ aleph -h
+```
+
+  </p>
+</details>