Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -15,7 +15,7 @@ Start by opening an issue using one of the issue templates, or propose a change
     - Add `npm_arch=x64` to $HOME/.gradle/gradle.properties
     - Add `protoc_platform=osx-x86_64` to $HOME/.gradle/gradle.properties
 6. If using Windows:
-    - The extension uses `[email protected]` dependency which does not work out-of-the-box in Windows (check [this issues](https://github.com/grpc/grpc-node/issues/2338) for details), so you'll need to install some aditional DLLs.
+    - The extension uses `[email protected]` dependency which does not work out-of-the-box in Windows (check [this issues](https://github.com/grpc/grpc-node/issues/2338) for details), so you'll need to install some aditional DLLs if the project build is failed.
     - Download and start [Build Tools for Visual Studio 2022](https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2022).
     - Go to the **Individual Components** tab and select the following:
       - `MSVC v143 - VS 2022 C++ x64/x86 build tools (latest)` (replacing `x64/x86` with your arch)