Improve readme

Author: mveril

README.MD

@@ -35,9 +35,19 @@ This crate provides unsafe bindings that closely follow the original C API. User
 
 ## NuGet package dependency
 
-This project depends on a third-party dependency called [Microsoft.WSL.PluginApi](https://www.nuget.org/packages/Microsoft.WSL.PluginApi) from Microsoft, available on NuGet and providing bindings for it. To upgrade it, change the version build metadata of the project and run `cargo xtask bindgen` (don't forget to commit changes generated from the xtask). This xtask download the nuget package and run bindgen on the header to compute a rust file used as binding. This allow offline build with no need of the windows header at build time. All the output of this task is added to a `build` folder that need to be commit This folder contain a metadata file and a checksum file.
+This project depends on a third-party dependency called [Microsoft.WSL.PluginApi](https://www.nuget.org/packages/Microsoft.WSL.PluginApi) from Microsoft, available on NuGet and providing bindings for it. 
+## xtask bindgen
+To upgrade it, change the version build metadata of the project to the target `Microsoft.WSL.PluginApi` version and run `cargo xtask bindgen` (don't forget to commit changes generated from the xtask). This xtask download the nuget package and run bindgen on the header to compute a rust file used as binding. This allow offline build with no need of the windows header at build time. All the output of this task is added to a `build` folder that need to be commit This folder contain a metadata file and a checksum file.
 The information of this metadata file and checksum file are used at build time to detect the path of the binding and check the integrity (corect checksum and version correspondance).
 
+### Requirement
+
+To run this command you require the following dependencies
+- llvm
+- rustfmt (from rustup)
+- Nuget CLI
+
+
 ## License
 
 This project is licensed under the MIT License. See the LICENSE file for details.