update readme

Author: ai-chen2050

README.md

@@ -12,20 +12,17 @@ It's built using the [Cosmos SDK](https://github.com/cosmos/cosmos-sdk/) and imp
 [Narwhal](https://github.com/MystenLabs/narwhal) + [Bullshark](https://github.com/MystenLabs/sui/tree/main/consensus/bullshark) consensus mechanism
 for improved performance and scalability.
 
-## Documentation
-
-Our documentation is hosted in a [separate repository](https://github.com/hetu-project/docs) and can be found at [docs.hetu.org](https://docs.hetu.org).
-Head over there and check it out.
+## Installation
 
 **Note**: Requires [Go 1.20+](https://golang.org/dl/)
 
-## Installation
-
 For prerequisites and detailed build instructions
 please read the [Installation](https://docs.hetu.org/protocol/hetu-cli) instructions.
 Once the dependencies are installed, run:
 
+```bash
 make install
+```
 
 Or check out the latest [release](https://github.com/hetu-project/hetu/releases).