Update README.md

Linking to the source code

Author: Aimeedeer

README.md

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   Tendermint-based blockchain applications.
 - [Anchor](https://github.com/coral-xyz/anchor)
   is a framework for Solana's Sealevel runtime providing several convenient developer tools for writing smart contracts.
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 ## Cross-Chain
-- [AtomicDEX](https://atomicdex.io).
+- [AtomicDEX](https://github.com/KomodoPlatform/atomicDEX-API).
   Cross-chain and cross-protocol p2p orderbook based decentralized exchange and interoperability bridge (self-custodial).
 - [Comit](https://comit.network/) is an open protocol facilitating
   trustless cross-blockchain applications.