message: readme: link to build guide moved
diff: @@ -42,7 +42,7 @@ Quick Links:
  - [QuickStart](https://mavsdk.mavlink.io/main/en/cpp/#getting-started)
  - [C++ API Overview](https://mavsdk.mavlink.io/main/en/cpp/#api-overview)
  - [API Reference](https://mavsdk.mavlink.io/main/en/api_reference/)
  -- [Building the Library](https://mavsdk.mavlink.io/main/en/contributing/build.html)
  +- [Building the Library](https://mavsdk.mavlink.io/main/en/cpp/guide/build.html)
  - [Examples](https://mavsdk.mavlink.io/main/en/examples/)
  - [FAQ](https://mavsdk.mavlink.io/main/en/getting_started/faq.html)
  