From e9ed3c9daea19c3109fa0d35d49b424fe84cd272 Mon Sep 17 00:00:00 2001
From: "yongen.loong" <yongen.loong@aelf.io>
Date: Mon, 29 Jul 2024 11:28:26 +0800
Subject: [PATCH] feat: youtube video

---
 docs/quick-start/developers/hello-world-contract/index.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/quick-start/developers/hello-world-contract/index.md b/docs/quick-start/developers/hello-world-contract/index.md
index 0cdd806f..a341e1fb 100644
--- a/docs/quick-start/developers/hello-world-contract/index.md
+++ b/docs/quick-start/developers/hello-world-contract/index.md
@@ -14,6 +14,8 @@ smart contracts on aelf blockchain.
 
 **Difficulty Level**: Easy
 
+<iframe width="100%" style={{"aspect-ratio": "16 / 9"}} src="https://www.youtube.com/embed/ZowLZFIACzA?si=eytSa5h9CrWLLoRE" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+
 ## Step 1 - Setting up your development environment
 
 import Setup from "../_setup.md"