Merge pull request #344 from interlay/nakul/chore_add_polkadex

chore: add polkadex reference in asset onramp guide.

docs/guides/assets.md

@@ -18,7 +18,7 @@ Used in many DeFi applications. On Interlay it can be used for lending and borro
 
 - **From Bitcoin:** If you already have BTC on the bitcoin chain, you can use the [Interlay bridge](https://app.interlay.io/btc) to mint iBTC directly on Interlay. For an extensive guide on how to mint iBTC please see the [docs](/guides/bridge).
 - **From Exchanges**: When minting iBTC you can deposit BTC from a centralized exchange. _Careful: pay close attention to the exact amounts the exchange will send and compare to the amount of BTC you need to deposit into the Vault! These need to be exactly the same for automatic processing, otherwise you will need to manually finalize the mint request via the bridge UI._
-- **From other parachains:** If you already have iBTC on other parachains, use the [bridge tab](https://app.interlay.io/send-and-receive) on the app to bridge it to Interlay. iBTC is also available on decentralized exchanges such as: [Pulsar](https://app.stellaswap.com/exchange/swap), [HydraDX](https://app.hydradx.io/#/trade), [Acala](https://apps.acala.network/swap), [Arthswap](https://app.arthswap.org/#/swap), [Parallel](https://app.parallel.fi/swap)
+- **From other parachains:** If you already have iBTC on other parachains, use the [bridge tab](https://app.interlay.io/send-and-receive) on the app to bridge it to Interlay. iBTC is also available on decentralized exchanges such as: [Pulsar](https://app.stellaswap.com/exchange/swap), [HydraDX](https://app.hydradx.io/#/trade), [Acala](https://apps.acala.network/swap), [Arthswap](https://app.arthswap.org/#/swap), [Parallel](https://app.parallel.fi/swap), [Polkadex](https://orderbook.polkadex.trade/trading/IBTCUSDT)
 - **From other chains (Ethereum, Solana, Cosmos,..)**: if you are coming from other networks, please see our cross-chain onramp guide below.
 
 ## DOT