diff --git a/README.md b/README.md
index 251f608..5ca6beb 100644
--- a/README.md
+++ b/README.md
@@ -5,15 +5,18 @@
 `coin-build-tools` provides a set of tools to build [Coin-OR] libraries from source.
 
 ## Usage
+
 Just add the following to your `Cargo.toml`:
 
 ```toml
 [build-dependencies]
-coin-build-tools = "0.2"
+coin-build-tools = "\*"
 ```
 
 ## Configuration
 
+### Environment
+
 The package build from the source and link statically by default. It also provide the following environment variables to allow users to link to system library customly:
 
 * `CARGO_${LIB_NAME}_STATIC` to link to CoinUtils statically;
@@ -23,8 +26,8 @@ Set the environment variable to `1` to enable the feature. For example, to link
 
 ## Windows and vcpkg
 
-On Windows, if `${LIB_NAME}_SYSTEM` is set to `1`, `osi-src` will use 
-[vcpkg] to find Osi. Before building, you must have the correct Osi 
+On Windows, if `${LIB_NAME}_SYSTEM` is set to `1`, `osi-src` will use
+[vcpkg] to find Osi. Before building, you must have the correct Osi
 installed for your target triplet and kind of linking. For instance,
 to link dynamically for the `x86_64-pc-windows-msvc` toolchain, install
  `osi` for the `x64-windows` triplet:
@@ -47,29 +50,32 @@ vcpkg install osi --triplet x64-windows-static
 
 and build with `+crt-static` option
 
-```
+```sh
 RUSTFLAGS='-C target-feature=+crt-static' cargo build --target x86_64-pc-windows-msvc
 ```
 
 Please see the ["Static and dynamic C runtimes" in The Rust reference](https://doc.rust-lang.org/reference/linkage.html#static-and-dynamic-c-runtimes) for detail.
 
 ## Cross Compilation
-you can use it for the other target by providing the `--target` option to 
-`cargo build`. 
 
+you can use it for the other target by providing the `--target` option to
+`cargo build`.
 
 | Target                               |  supported  |
 |--------------------------------------|:-----------:|
 | `arm-unknown-linux-gnueabi`          | ✓   |
 | `arm-unknown-linux-gnueabihf`        | ✓   |
-| `armv7-linux-androideabi`            | ✓   |
 | `armv7-unknown-linux-gnueabi`        | ✓   |
 | `armv7-unknown-linux-gnueabihf`      | ✓   |
 | `armv7-unknown-linux-musleabi`       | ✓   |
 | `armv7-unknown-linux-musleabihf`     | ✓   |
+| `aarch64-unknown-linux-gnu`          | ✓   |
+| `aarch64-unknown-linux-musl`         | ✓   |
 | `riscv64gc-unknown-linux-gnu`        | ✓   |
-| `x86_64-pc-windows-gnu`              | ✓   |
+| `x86_64-pc-windows-msvc`             | ✓   |
 | `x86_64-unknown-linux-gnu`           | ✓   |
+| `x86_64-unknown-linux-musl`          | ✓   |
+| others                               | not test   |
 
 ## Contribution
 
@@ -77,7 +83,6 @@ Your contribution is highly appreciated. Do not hesitate to open an issue or a
 pull request. Note that any contribution submitted for inclusion in the project
 will be licensed according to the terms given in [LICENSE](license-url).
 
-
 [vcpkg]: https://github.com/Microsoft/vcpkg
 
 [documentation-img]: https://docs.rs/coin-build-tools/badge.svg