message: modify build source link
diff: @@ -12,7 +12,7 @@ A Layered Cryptocurrency and Decentralized Blockchain System.
  cargo build --release
  ```
  -For prerequisites and detailed build instructions please read [Build from source](https://developer.starcoin.org/en/build/) document.
  +For prerequisites and detailed build instructions please read [Build from source](https://developer.starcoin.org/en/setup/build/) document.
  ## Install binary
  