updated YT URLs (#364)

Author: tanuj-aelf

docs/quick-start/advance-tutorials/nft-indexer/index.md

@@ -12,7 +12,7 @@ description: Advance featured AeIndexer application
 **Difficulty Level**: Easy
 
 <div class="video-container">
-<iframe src="https://www.youtube.com/embed/9amvWGMUBs0" title="AeFinder Demo: Use AeFinder to Index, Retrieve, and Manage data on aelf AI Blockchain" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+<iframe width="100%" style={{"aspect-ratio": "16 / 9"}} src="https://www.youtube.com/embed/XZuMwtn8UZU?si=NfoVMHnq_bfTOfKb" title="AeFinder Demo: Use AeFinder to Index, Retrieve, and Manage data on aelf AI Blockchain" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
 </div>
 
 ## Step 1 - Setting up your development environment
@@ -51,7 +51,7 @@ NFTAeIndexer/
 
 ### Core Components
 
-- Obtain the Token contract files through the [AeFinder GitHub NFT AeIndexer sample](https://github.com/AeFinderProject/aefinder/tree/master/samples/TokenAeIndexer), and copy these two files to the directory src/NFTAeIndexer/Contracts.
+- Obtain the Token contract files through the [AeFinder GitHub NFT Indexer sample](https://github.com/AElfProject/aelf-samples/tree/master/nft/nft-indexer/src/nftIndexer/Contracts), and copy these two files to the directory src/NFTAeIndexer/Contracts.
 
 :::tip
 ℹ️ Note: If other contract files are needed, they need to be generated by compiling the corresponding contract project!

docs/quick-start/developers/dice-game-dapp/index.md

@@ -11,7 +11,7 @@ state variables, user interactions, and random number generation using Aetherlin
 
 **Difficulty Level**: Moderate
 
-<iframe width="100%" style={{"aspect-ratio": "16 / 9"}} src="https://www.youtube.com/embed/sBNfFADQMXg?si=wbCGIIxez-nh0PC-" 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>
+<iframe width="100%" style={{"aspect-ratio": "16 / 9"}} src="https://www.youtube.com/embed/kwwO2Xn6LOQ?si=KovSOxAwWUecpccL" 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