message: docs: Add FreeBSD build notes link to doc/README.md
diff: @@ -41,9 +41,10 @@ The following are developer notes on how to build Bitcoin Core on your native pl
  - [macOS Build Notes](build-osx.md)
  - [Unix Build Notes](build-unix.md)
  - [Windows Build Notes](build-windows.md)
  +- [FreeBSD Build Notes](build-freebsd.md)
  - [OpenBSD Build Notes](build-openbsd.md)
  - [NetBSD Build Notes](build-netbsd.md)
  -- [Gitian Building Guide](gitian-building.md)
  +- [Gitian Building Guide (External Link)](https://github.com/bitcoin-core/docs/blob/master/gitian-building.md)
  Development
  ---------------------
  