Link to Popular dApps

Added Alchemy’s dApp store as I’ve found it to be a useful web directory. It has information about popular dApps and their respective chains. Thought this would help other devs directly view and play around with productionized dApps, enhancing their understanding of the rest of the article.

Author: vardhanshorewala

src/content/developers/docs/dapps/index.md

@@ -73,6 +73,7 @@ A smart contract is code that lives on the Ethereum blockchain and runs exactly
 - [The Architecture of a Web 3.0 application](https://www.preethikasireddy.com/post/the-architecture-of-a-web-3-0-application) - _Preethi Kasireddy_
 - [A 2021 guide to decentralized applications](https://limechain.tech/blog/what-are-dapps-the-2021-guide/) - _LimeChain_
 - [What Are Decentralized Apps?](https://www.gemini.com/cryptopedia/decentralized-applications-defi-dapps) - _Gemini_
+- [Popular dApps](https://www.alchemy.com/dapps) - _Alchemy_
 
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