docs/manage-tokens: Add link to ROSE app

docs/general/manage-tokens/README.mdx

@@ -13,6 +13,22 @@ for:
 - paying **network gas fees**,
 - dApp-specific use cases.
 
+:::tip ROSE App - The quickest way into the Oasis Ecosystem
+
+The Oasis team built a **[ROSE App]** for you to easily **move ROSE**
+from a crypto exchange to Sapphire and the other way around. This way you
+can quickly and safely start using your tokens with Sapphire dApps without
+diving into mechanics of the Oasis ParaTime deposits and withdrawals! You simply
+need a working [Metamask/Ethereum compatible wallet](#metamask).
+
+<p style={{width: '100%'}}>
+    <iframe style={{margin: 'auto', display:'block'}} width="560" height="380" src="https://www.youtube.com/embed/2AEBhbArV0k" title="How to Deposit &amp; Withdraw on ROSE App" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+</p>
+
+:::
+
+[ROSE App]: https://rose.oasis.io
+
 ## ROSE and the ParaTimes
 
 The [Oasis Network architecture] separates between the **consensus** and the
@@ -39,19 +55,23 @@ tokens]** to a validator and **earn passive income** as a reward.
 ## Obtaining ROSE
 
 The most common way to obtain ROSE is by buying it on a centralized
-[cryptocurrency exchange]. At time of writing this chapter, **all exchanges
-supported the consensus layer only**. This means that you can withdraw
-tokens from the exchange only to **your consensus account**. Use the [ROSE
-Wallet](#official-non-custodial-wallets) to **create one** and also to **deposit
-ROSE to Sapphire**, if you want to use your tokens in a dApp afterwards.
-
-An alternative way to obtain ROSE is by swapping another cryptocurrency for
-ROSE on a **[decentralized exchange] (DEX) running on Sapphire**. In this case,
-the payout is made to **your account on Sapphire** directly, and you can use a
-standard [Ethereum-compatible wallet](#metamask) to manage it.
-
-[cryptocurrency exchange]: https://en.wikipedia.org/wiki/Cryptocurrency_exchange
-[decentralized exchange]: https://en.wikipedia.org/wiki/Decentralized_finance#Decentralized_exchanges
+[crypto exchange]. At time of writing this chapter, **all exchanges only
+supported the consensus layer**. This means that you can withdraw ROSE from
+the exchange only to **your consensus account**. To address this, the Oasis team
+built a simple tool **[ROSE App]** that can quickly and safely **move funds from
+the consensus account derived from your [Ethereum-compatible wallet](#metamask)
+to Sapphire** and the other way around.
+
+Alternatively, you can use a fully-featured [ROSE
+Wallet](#official-non-custodial-wallets) to **create a consensus account** and
+then **deposit ROSE** from that account to your Sapphire one.
+
+**[Decentralized exchanges] (DEX) running on Sapphire** are also gaining pace.
+In this case, the payout is made from the DEX directly to **your account on
+Sapphire**, and you can use a standard [Ethereum-compatible wallet](#metamask).
+
+[crypto exchange]: https://en.wikipedia.org/wiki/Cryptocurrency_exchange
+[Decentralized exchanges]: https://en.wikipedia.org/wiki/Decentralized_finance#Decentralized_exchanges
 
 ## The Wallets