README refers to dredd script that no longer exist

[JonathanFoo0523]

The part of README that describe building dredd contains the command

.github/workflows/install_clang.sh

, which no longer exist in today's dredd repo.

[afd]

Thanks - perhaps you could adapt the instructions so that they explain how to get clang. The code that I think used to be part of those scripts look like this:

  # Install clang.
  pushd ./third_party/clang+llvm
    curl -fsSL -o clang+llvm.zip "https://github.com/mc-imperial/build-clang/releases/download/llvmorg-${DREDD_LLVM_TAG}/build-clang-llvmorg-${DREDD_LLVM_TAG}-Windows_x64_Release.zip"
    unzip clang+llvm.zip
    rm clang+llvm.zip
  popd

Please see .github/workflows/build.sh in Dredd.