add difficulty badges (#515) (#617)

Co-authored-by: Lucas Malizia <[email protected]>

Author: nhussein11

tutorials/smart-contracts/launch-your-first-project/create-dapp-ethers-js.md

@@ -1,6 +1,7 @@
 ---
 title: Create a dApp With Ethers.js
 description: Learn how to build a decentralized application on Asset Hub using Ethers.js and Next.js by creating a simple dApp that interacts with a smart contract.
+tutorial_badge:  Intermediate
 ---
 
 # Create a dApp With Ethers.js

tutorials/smart-contracts/launch-your-first-project/create-dapp-viem.md

@@ -1,6 +1,7 @@
 ---
 title: Create a dApp With Viem
 description: Learn how to build a decentralized application on Asset Hub using Viem and Next.js by creating a simple dApp that interacts with a smart contract.
+tutorial_badge:  Intermediate
 ---
 
 # Create a dApp with Viem