Merge pull request #2 from helix-bridge/aki-what-is-helix

what is helix revising

docs/helixbridge/what_is_helix.md

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-Helix Bridge is a fully open-source and decentralised cross-chain asset bridge. Based on the common messaging bridge that already exists between chains, Helix provides users with secure, fast, and low-cost asset cross-chain functionality.
+Helix Bridge is a fully open-source and decentralized cross-chain asset bridge. It's built on top of common messaging bridges that already exist between chains, and provides secure, fast, and low-cost cross-chain functionality for users.
 
 ## Features
 
 - **Secure**
-  <br>Helix Bridge separates the underlying generic messages and focuses on the Asset Bridge Protocol portion, where the security of the Asset Bridge is not entirely dependent on the generic messages. Even though we place great importance on security being careful when choosing a generic messaging bridge, the Asset Bridge Protocol minimises the risk when a security incident occurs on the Asset Bridge. Later in the protocol section, we will focus on how Helix secures the user's assets.
+
+  Helix Bridge separates the underlying generic messages and the asset bridging, which helps to reduce risk.  
+
+  While Helix's security does not entirely rely on generic messages, we take great care in selecting the generic message bridges we use. By combining the security of the generic message bridges with other security measures, we minimize the risk of security incidents.   
+
 - **Fast**
-  <br>Helix's Asset Cross-Chain Protocol, also known as Cross-Chain Asset Exchange Protocol, crosses the chain at a speed that is even less than the confirmation time of the block on the source chain. Typically, the entire cross-chain process can be completed in 10 seconds to a minute.
+
+  Additionally, Helix's Asset Cross-Chain Protocol can complete the cross-chain process in as little as 10 seconds to a minute, making it a fast and efficient option for users.  
+
 - **Low Cost**
-  <br>Although Helix relies on a common messaging bridge, in most normal scenarios, cross-chaining can be accomplished without the use of common messaging, with simple interactions between the user and the contract, and the transfer of assets occurs directly between EOA accounts, making it very inexpensive.
+
+  The low cost of Helix's cross-chain process is due to its innovative design, which avoids the need for complex messaging bridges. Instead, simple interactions between the user and the contract allow for direct asset transfers, minimizing the cost of the process.  
+
 - **Trustless**
-  <br>The protocol itself is a decentralised exchange of benefits without the need to trust any centralised system. We have introduced a variety of roles to ensure the safety of user assets and the stable operation of the cross-chain.
+
+  The Helix protocol is trustless, meaning that users do not need to rely on any centralized system to exchange assets. Instead, the protocol relies on a variety of roles to ensure the safety and stable operation of the cross-chain process. This trustless design makes the protocol more secure and resilient to failure, as it does not depend on any single point of failure.  
 
 ## Join The Community