message: updated build guide
diff: ## Build Standalone Binaries
  -### Build Docker Image
  -
  -```bash
  -docker build -t shadowsocks-rust:x86_64-unknown-linux-musl -f Dockerfile.x86_64-unknown-linux-musl .
  -```
  -
  -### Build Binaries
  +### Build with `cross`
  - Install [`cross`](https://github.com/rust-embedded/cross)
  @@ -19,3 +13,9 @@ cargo install cross
  ```bash
  cross build --target x86_64-unknown-linux-musl
  ```
  +
  +### Predefined build routines
  +
  +- `build-release`: Build binaries with `cross` and packages outputs into `release` folder
  +- `build-host-release`: Build binaries with host's Rust toolchain. *NIX shell script
  +- `build-host-release.ps1`: Build binaries with host's Rust toolchain. PowerShell script
  